I've been a member of a few. The one I started out on was on the ABC message boards. I would post in TV shows like Alias, Lost, and Desperate Housewives. I frequented those boards the most. It was definitely a lot more lax in moderating, that's for sure (and not in a good way). I got banned so many times and all you had to do was just make a new sign on name. Either they didn't care if you made a new identity, or they had no way of telling that you made a new one. I used to sign on to various screen names, depending on who I wanted to be that day. It was usually variations of my name, and I put them on like clothes to express myself. lol
I am currently on another forum, but it's literature related. There is usually too many threads on there to keep up, and it seems like everyone knows everybody and I just don't have the time to post regular enough to get to know everyone. However that forum has a lot of uses to me, seeing as how the literature section on here doesn't hop very much (trying to improve that with the book club).
But GF will always be my home. I love so many people on here and have made tremendous friends.