The list of great guys would be long! Don't forget cinepro, silentkid, renegade, Tarski, Pokatator, Dude, Richard, Roger, BishopRic, AbFire, Trevor, EAllusion, Gadianton, Canucklehead, etc... etc... The good FAR outweigh the bad.
So, maybe it's just that the few distort the overall picture? I'm not certain.
It may be (and yes, agree with that list, and more).
When I went back to find that old Z thread to post here, it was clear that the problem really was ONE poster. But that ONE poster succeeded in tainting the whole thread, for me, at least. It's like Bond said, earlier - all it takes is one fart to stink up the whole elevator.
I think part of that tainting problem is when other posters remain silent. Yet, of course, that silence doesn't mean they approve, but it can feel that way. We all know sometimes speaking out encourages the perpetrator to even more problematic behavior. (see will in the thread above) Yet, to run with the elevator analogy (thanks, bond ;) if someone lets loose in an elevator, and everyone starts whistling and looking at the ceiling, you begin to suspect all of them....