I'm a part of a few forums actually. The BBS (pokemon magazine), Serebii, Memecenter, Smogon, and of course, here. The only ones I frequent are The BBS, Memecenter, and well, here. I'll go on Serebii to update my story every monday, but that's pretty much it.
I joined two summers ago, racked up around 100 posts, then disappeared off the forum. This past summer, I was trying to think of places to post my story to get more feedback and I thought of this place. I came back (even if it was to only get feedback), lurked around for a bit, started posting, joined a few clubs, reviewed other stories, made some new friends, and before I knew it, I had 800 posts (exactly as of this post). Now, I wouldn't even think of leaving this place, it's too much fun just hanging out with you guys. :D