There are still some good discussions going on over there. The 100 Bullets forum always seems to have interesting threads and people making insightful comments about the title.
I think the thing that stops me from posting at DC, is that the social element went away when Warners decided that they wanted their forums to be rigidly on topic.
As a consequence, you don't really get to know the other posters like you used to. There's no sense of community as there is here at RKMBs.