I fully respect Czarcasm’s & Tuba’s judgement, and I feel their actions fall within their perogative.
This is a very emotional topic, and I think the danger of letting the thread remain is posted mostly to those of us on the board who would be hurt by reading it.
It seems to be accepted by everyone who opposes allowing the thread, that the guy is a child molester and the thread would only make him feel more valid in his behavior, not change it. So leaving the thread open would only affect him emotionally (give him a thrill), which we wouldn’t want to do.
No one has ever stated (here at least) that child molesting is in any way defensible, so he wouldn’t get encouragement. In fact, here would be a chance for people to tell him how wrong he was, to his (virtual) face. If it didn’t change him- no harm done.
I feel, though, that I missed something by not seeing it, and not being able to contribute. I do think fighting ignorance (of the rest of us SD posters) would have been better served by allowing the discussion.
Of course, if it put the SDMB or it’s host in legal jeopardy, then there are no other options, anyway.
Except maybe having a mod/admin post at the beginning that child molestation is sick & wrong morally, ethically, legally, and while discussion of the topic is allowed, no support implied or otherwise should be inferred.
So we tar a person who hasn’t acted on these desires with someone who has? I, for one, save my full repugnance for the the villain. Czarcasm wouldn’t tell us if he was an animal lover in the biblical sense, but that doesn’t mean I wouldn’t believe him if he said he wasn’t. 
Are we worried that more people will be victimized if we left the thread? If so, then I fully support removing it. If not, if it’s because of it’s emotional impact, then (while I still respect the mod/admin action) I disagree with removing it.
I think as long as no one is hurt (any more than people are by the statements of the gay-haters, obese-bashers, racists, etc that we allow expression to) we should allow discussion, and hope that we all learn from it.
PC