They could quitle literally make a rule that says every post must begin with "Quack, quack, I'm an Aligator on a bolivian lardboat" if they wanted. (This would seriously limit my posting, mind you)

I know of sites that have FAR more restrictive rules than have been put in place here.
We've got it good here.
Until they start with rules that are unfair and discriminatory*, there's nothing to whinge about.
Point Blank, the Hate messages Must Stop.
Those that post these can stop on their own or BE Stopped. (had I been made a Moderator, I wouldn't have been as lenient for as long as these guys have. Call me Fascist all you want.)