I'd be in favor of splitting off an openACS 3.x forum, separate from the Q&A forum. With the intermingling of 3.x and 4.x comments and questions in this forum (and the less than stellar search interface), finding questions that have been asked before is getting tricky. Or at the very least, separate 3.x categories within this forum would be helpful, if we could search by category.
I'ma bit worried about balkanizing the forums too much, but at the same time, having everything in one huge forum isn't so great either.
