On the topic of usability, here's another question to consider: should SolidWorks be using a forum at all? Forums are designed for discussion, not solving problems per se. Problems can be solved in forums, but with much less efficiency, as I explain here. It's like using a tire iron to hammer a nail.
Jive is a business collaboration / social media platform. That's part of why there's so many bells and whistles. Jive is designed to solve a different problem than SolidWorks users that come to the forums have. It is my opinion that until the forums are converted to a Q&A site like StackOverflow.com, the usability problems will always be inherent.