This forum actually isn't that bad compared to most...
Trolls usually only last about 3 weeks max here.
I'd say the only problem with the forums here is the "Bandwagon Effect", where everyone just goes along with one thing said or something being done. Even when they have no party in doing so or it doesn't make any sense.
But hey thats what you get with a bunch of 11-16 year olds :P