They weren't booted for supporting Rudy, many Rudy supporters are still around. The ones that where booted (and that thread is still available) where acting like a**holes, asking for it. I am surprised how much patience the mods have, they kept warning them over and over and gave them second, third, and fourth chances.
From Blazing Saddles (1974)
Taggart: I hired you people to try to get a little track laid, not to jump around like a bunch of Kansas City faggots.