One particularly comes to mind. It seems like the private harassment playground for certain staffers, with their groupies joining in. It does have at least 3 very good mods. But the Admin and his side kick mod are particularly into using the forum for playing cat and mouse with people they don't like, including using their mod powers and groupie followings to stalk and harass some people like a game. Forums tend to start good, but trolls and spammers accumulate and less and less good people join, with good members quitting. They also become redundant and boring, so playing flaming and stalking games becomes more popular as the membership shifts in that direction anyway. I've seen a number of political forums follow that evolution.