Sorry if your comment doesn’t show…

January 28th, 2011
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Every once in a while a comment is flagged as spam despite not being spam. I try to check out the spam folder and correct comments that are flagged as spam when they should not be, but it can be hard, because the spam folder often contains dozens of comments.

It’s something I had not anticipated about blogging. Many of the spammed comments are simple bot-created advertisements for services and attempts to drive web traffic to various sites. Occasionally some will slip through, but by and large filters can catch these by collecting reports from around the web of the addresses and text used.

There’s another kind of spam that is much harder to deal with and causes the most headaches when it comes to misidentifying legitimate comments. A few people (well one especially) take it upon themselves to repeatedly send me email and comment on this website about their own warped beliefs in Nostradamus or their religion and their belief that I represent some kind of evil in the world. This can be a bit difficult to stop when the individual is constantly creating new email addresses, refreshing their IP address and skipping between ISP’s, proxy servers and locations to login to comment. The best way to deal with it is to block key phrases as well as IP ranges and common links, but it’s far from perfect and all too often it catches legitimate comments.

That said, it has proven important to block these comments because when these do eventually get through they seem to encourage the wacko who sends them to send even more.

Here’s just part of what my spam folder looks like:


For those who don’t know, the individual in question is Dennis Markuze, although he often goes by the name David Mabus or some variation of it.   He’s more than just a common internet troll – he is extremely committed and obsessed to his own delusions, and seems to spend a great deal of time posting to various skeptically-oriented blogs and forums.   He’s constantly being kicked off and having his posts deleted and when this happens, he just turns around and creates a new name and makes more of them.   He creates twitter/Facebook/Youtube/forum/ accounts and harasses people, sometimes sending hundreds of messages.  The accounts get closed and he just creates new ones.

He lives in Montreal, apparently with his mother.   At one point he sold used computer equipment, but this does not seem to be an active business anymore.  He has been especially vicious in his attacks against PZ Meyers and a few other prominent skeptics such as James Randi and Michael Shermer.  Although he often sends out large mailings to every name he can find associated with skeptic-oriented groups, even including office staff members.

Apparently I was added to his list of people to harrass after I wrote an article for the James Randi Educational Foundation in which, amoung other things, I dismissed psychics and prophets and stated that Nostrodamus’s writings were so vague and ambiguous they can’t be said to predict much of anything.

Most of the time his messages are not direct threats, but are more oriented toward the “God will kill you” kind of statements that are too ambiguous or indirect to warrant any kind of direct action.  Still, he does occasionally cross the line and make very direct and personal threats of violence.   For this he has been reported, but things have been complicated by the fact that many of his statements cross international boarders.  Still, both PZ Meyers and Michael Shermer have spoken with Montreal police about him.   In fact, what he has generally said to me is quite tame compared to some of the threats he made against Michael Shermer.

The man is clearly mentally ill, but his family seems to deny this and insist that he stopped making threats.   The reality is that people like this are very difficult for authorities to handle.   Making these kind of threats often results in a slap on the wrist and release to do it again.   Compelling a mentally ill person to be institutionalized or medicated is a complex process that often is not perused and when they have family members who believe they’re not sick, it makes it even harder.

I have no doubt that eventually, he’ll get himself in some very serious trouble, but it might take a while.

Google his name to find out more.


This entry was posted on Friday, January 28th, 2011 at 12:29 am and is filed under Announcements, Just LAME, Misc, personal, Website. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.
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9 Responses to “Sorry if your comment doesn’t show…”

  1. 1
    Anon Says:

    Hey, he tried to quote something I typed in one of his spams.

    I’m famous (yay).

    That said, comment 24 not being fully visible in the previous post is also annoying.


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  2. 2
    Kim Says:

    Yeah, sounds like a very unstable man. Probably needs some kind of legal and medical intervention or who knows? Lots of people like that rant and rave and never do anything but some of them go and blow something up or shoot people, which is why it can’t be ignored.

    Has he ever threatened you directly with harm? Are you concerned about him in this respect? Do you think he would ever actually try to find you and do anything?


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  3. 3
    Troberg Says:

    I had similar problems with a commenter at my site. I wrote some posts (and comments on other blogs) that attacked the neo-nazi party the Sweden Democrats, as did my sister. That resulted in a very disturbed individual who started sending 20-50 comments a day from an unsecure wireless network belonging to a library, with a mix of threats and derogatives, and personal information about where we lived, worked and how much money we made. He even went as far as to stalk my sister and brag about it in the comments.

    I ended it by responding with a “Empty threats from empty heads will not intimidate me. I’m at home at noon on Sunday, you know where I live. Nut up or shut up.”. He didn’t show up (which kind of disappointed me), and I haven’t heard from him since. Let’s see how long it lasts, as I’m about to launch another few blog based verbal ICBMs at the Sweden Democrats soon…

    Just look at it like I do: If you never piss off anyone, you haven’t said or done anything important. That some people get pissed off is the best praise one can receive.


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  4. 4
    drbuzz0 Says:

            Kim said:

    Yeah, sounds like a very unstable man. Probably needs some kind of legal and medical intervention or who knows? Lots of people like that rant and rave and never do anything but some of them go and blow something up or shoot people, which is why it can’t be ignored.

    Has he ever threatened you directly with harm?

    Are you concerned about him in this respect?

    Do you think he would ever actually try to find you and do anything?

    He has made some statements which were clearly direct threats, but most of what he says is stuff like “the end of atheism is near” or “You will soon face justice” These are things that I generally have taken less as threats of violence and more like a warning that he believes that god or something is going to get me.

    He’s clearly a complete nut job and as soon as he started spamming me I just googled it and found out that he has been at it for years. I’m not concerned for my personal safety. He’s a nut job but also a coward. Not only that, but it’s not like I’m the only or even the primary target of his rantings. Montreal is an easy day’s drive away, but I don’t think he’s got the cohones to actually do anything and even if he did, it would not likely be directed at me. Also, he’s clearly not very bright.

    There is some reason for concern though. He has some very disturbing violent delusions and a belief that he is doing some kind of important task for a higher power by spamming blogs. These are the kind of people who do crazy **** like push old lady’s in front of trains on subway platforms or open fire on crowds in markets. One never knows.


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  5. 5
    Leslie Flint fan: The debate is over. Says:

    Leslie Flint was the greatest voice medium of our time. He willingly subject himself to rigoursly controlled testing by an endless army of scientists and skeptics spanning 40 years and there was never found to be even a hint of fraud. No matter how much control and restrictions were placed on him, the voices came anyway. In short, Leslie was exactly what he said he was. He was a voice medium used by those on the other side s a vehicle to communicate through.

    James Randi says he has never heard of Leslie Flint. What James is actually saying is that he has no answer for Leslie Flint and therefore denies that he even existed. This is the greatest acknowledgement of Leslie’s powers. However, by denying Leslie, James exposes himself as a fraud. With James having so much at stake, should we be surprised?


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  6. 6
    drbuzz0 Says:

            Leslie Flint fan: The debate is over. said:

    James Randi says he has never heard of Leslie Flint. What James is actually saying is that he has no answer for Leslie Flint and therefore denies that he even existed. This is the greatest acknowledgement of Leslie’s powers. However, by denying Leslie, James exposes himself as a fraud. With James having so much at stake, should we be surprised?

    No. What he said is he has never heard of Leslie Flint. I had not either until he was recently brought up and I went and Googled his name.

    That’s not the same as denying someone existed. Have you ever heard of Albert A Packard? No? So you’re saying he never existed! Well, he did too exist! He was my great great grandfather! So there ya go! I’m sure there are plenty of people, in fact, billions, who existed but who you’ve never heard of.

    Anyway, if he is so talented he can apply for the Million Dollar Challenge. I realize that he died in 1994, but if he’s so great at communicating across the bounds of the afterlife then that shouldn’t be any problem, right?

    Look, I’ll even do him a favor: if his spirit is not capable of physically manipulating the world of the living and holding a pen then he can just talk to me and I’ll transcribe the MDC application for him. Fair enough?


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  7. 7
    Anon Says:

    Some good news on this issue at http://skeptools.wordpress.com/2011/08/17/case-study-notorious-spammer-brought-down-twitter-tumblr-social-media-mabus/ and http://www.torontosun.com/2011/08/11/montreal-cops-probe-internet-death-threats

    Looks like he might finally get the help he needs (or at least be out of reach of an internet connection for a bit of time).


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  8. 8
    drbuzz0 Says:

    Yeah. Was going to post about this, but been crazy busy recently


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  9. 9
    Depleted Cranium » Blog Archive » Dennis Markuze Arrested Says:

    [...] He often will send dozens of messages. Most of these are blocked by the automatic spam guards, as mentioned here. He also sporadically e-mails me and sends tweets addressed to me. He does this to almost anyone [...]


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