Lighten up...everyone. Life is mostly funny, and we should all just have fun with it. Talk forums should be "witty banter." It would get pretty boring if all we did was talk about wrestling.
Example:
"Topic: The Pro's and Con's of hitting high crotches."
-or-
"Topic: Dwizzam, those cheerleaders looked superfly at State this weekend!"
Come on, which would be the more interesting topic?
And on the subject of rumors: posting them on the forum would make it easier to find out whether or not they are valid. Someone who is "in the know" would be able to shed some light on the subject.
Also: you won't change anyone by leaving-no one likes you that much.