Much, much better support on Ask Metafilter. You have to pay a whole $5 for eternal access, but that's apparently enough to reduce the level of trolls by 9000%.
Metafilter seems particularly relevant in light of Quora and App.net, and while the price tag has kept it obscure I've only heard good things about its community. So I'm curious what criticisms you have.
In some circumstances, that may be extremely relevant.