There should be stickies made of combined knowledge.

Instead of 200 different threads about "is this a good combo?" there should be one that has all the pros and cons listed, kept up to date in the first post. Then discussion about the classes within that individual thread. (Go see elitist jerks if you want to see a working example)

There is so much useful information on these boards, but it is very tough to find. Consolidating it would make that much easier. The wiki was supposed to do that, but posts lead to more discussion than a wiki.