The rules actually need updated. Fighter bashing just leads to problems. You are still allowed to have an opinion on a fighter. For example you can say Tim Sylvia is talentless, boring, shit himself in a fight and that you don't like him. However there is no need to call him a cocksucking douchebag.
There is no need for personal attacks on fighters like that. How is it getting out of hand? Very few people have even been warned over it.