I think there is a lot of QQ at the moment, but I also think players are getting used to the idea of a new forum and figuring out how it's going to work.
Usually what happens is the players who say uninformed or dare I say dumb things get ignored or shouted down. Eventually, it's still our hope that we can foster some intelligent discussion about the things that are working and not working in the current class balance.
That is going to take some e.g. mages posting on warrior concerns, and the warriors getting comfortable with that happening.
There is a lot of bad behavior to unlearn, but I remain optimistic. The tanking and healing forums are already off to a good start, in part because those specs are typically not trying to kill each other in PvP settings, in part because they aren't competing quite as much for raid spots, and in part because there are just more specs that do dps.