Yes, some instructive threads are often polluted by some very mature persons. Unfortunately...
I remember 3 or 4 guys flooding a thread where a very novice chess player was looking for advice. When I asked them "why?" I got nasty reponses with childish irony. Forums, such a mysterious thing...
Earlier this week it was sad to see 3 different threads degenerate into 5th grade antics. One thread turned into an extensive discussion of farts, a second thread turned into a discussion of vomiting, and a third thread featured two members calling each other a vulgar term meaning anus. I'm not the most mature person around but I've been out of 5th grade for a long time. I thought that kiddiechess.com was a totally different site. Too bad.