Actually, I find it interesting and informative

to try to figure out what MM's problem is, seeing that he & some similar people are in fact part of the environment we all have to deal with. Writing him off as 'Don't bother, he's nuts' is a good idea in some contexts, but that doesn't make any phenomenon disappear, nor does it help one to figure out how the environment within which it appears actually works.

@iTeach: I get your point, but that's a rather passive attitude, don't you think? The sort of thing that leads to education that means nothing more than memorizing to pass exams.

Don't worry about it.

"Who will educate the educators?"

No, don't go blacklisting posters (except for reason of legal repercussion), just ignore the ones you don't like. If you can't ignore them, the problem is yours, not theirs.

Indeed - one of my problems with the nature of current online-fixation - frankly, I think, in many instances, it is becoming a social problem: people more and more 'see' online, where others say things they seem to believe, which is often not the case in face-to-face encounters... hmm, maybe I'm wrong, maybe posters are actually being more honest than they dare to be in 'real life'? Maybe this is not bad?
Of course this will also mean an increase in outright liars.