I think it would be helpful to have a one-time "Welcome to the Forums!" page when you first log in after registering and verifying. I was also a little confused when I first joined.

The welcome page could cover forum FAQs like how to post a screenshot, etc. It could also have a "Top Three FAQ's" from each LDW game so that if someone registered just to ask that question, they'd have their answer immediately.

Just a thought