Just because certain developers aren't active on some forums doesn't mean they aren't active on others.
Warrior DPS seems to be having the most issues at the moment, mainly Power management and inflated numbers, Rogues and Mages are looking very good, Warrior tanking mitigation is insanely well balanced right now and the only real Cleric problems are Puri and Warden being crazily OP from a pure numbers point of view and a little bit of people not knowing how they're supposed to play the new soul.