I was thinking maybe a common list/google doc of known major issues and known poorly working cards would be a good idea? It might be a little bit of work upfront but I think it would save a lot of time with people asking questions which have already been answered or are currently being addressed by the devs. I know the patch notes and forum threads do this to a certain extent but I was just throwing it out there to see what other people would think of this.
Actually we use this thread for feedback on cards: http://www.thebuddyforum.com/hearthbuddy-forum/158923-build-49-changelog-beta.html