[Dantes]

I think whether or not they are active has little to do with it. The real benefit here is organization. You have a place to look for information on your class before you push that "New Topic" button. If there are no threads in the class forum that answer your question, you can then create a new post there to ask. They may not all be active all the time, but neither is the library. It's still got useful info.

If we're thinking the wiki is a better source for this info, how about adding a link to the top nav? There needs to be better integration with the wiki and this site if we intend to use it and expect others to check it.