Over on Sherdog(MMA website) forums, they have a strict policy about not bashing/bad mouthing fighters. You pretty much get an insta ban for it. I think the rule is two fold, one to respect the professionals, and two, to encourage pro fighters to post on the forums.
IMO, AZB should adopt this stance and come up with specific definitions for what would be considered bashing pro players. Even if they post on the forums or not. 1st time warning, 2nd time perma ban.
I completely agree with this.