Perhaps it's just nostalgia getting the best of me, but I think it's pretty clear that for a while now, forum activity has been on the decline. In the broad scope of the entire site it may be but a small factor, but having an active community behind your site is always better to have.
Shoot me down if this has been declined before, but would it be too much to suggest a weekly forum highlight? Many members aren't aware we have forums, or if they are, they may not know that we house forums that aren't just for video games, and that this can be a fun place to relax and chat when one's thumbs have been worn out from gaming.
There are many ways this could be implemented, one of which I've made a mock-up for. It shouldn't be too difficult to make a slide in the slideshow on the main page for the weekly forum, right? By no means is this the only way it could be implemented or anything, I'm just trying to get some gears turning on how to rev up activity.
Mock-up slide:
Spoiler: "A TRUE MAN NEVER DIES, EVEN WHEN HE'S KILLED!"