As I've only had experience of two forums I can't make a judgment but from discussions I've had with other folk, I've become aware that there is no such thing as an open forum that is without twits or drongos or bloody galahs stuffing it up for everyone else by going off on a track that bears no relationship to the original focus of the particular forum.
The moral seems to be that you take the good with the bad and when the bad gets too much for you to handle you stay away for a few days or have as many strong drinks as it takes to calm you down.
The problem with the last suggestion is that by following it, you could develop other problems - like seeing double and feeling single. Or is it the other way round? Seeling fingle - nope, tha's not right either.
I think I'll just lie down and have worty finks.