You act like this is new. Have you been coherent since you've joined? This happens all the time, always will. Of course people are going to get pissed off toward you guys, stupid shit happens all the time. For example, the word filter is the absolute gayest shit I've ever seen on a forum, remove it for fuck sake. You have to be 13+ to join, I think you can hear the word faggot by that time. Getting a warning for purposely, or even accidentally evading it is ridiculous. Staff have broken rules for friends, it happens. Others get annoyed for that stuff. Reputation abuse shouldn't exist unless you're considering Rep4rep. If you must have a "valid" reason to neg someone, please, by all means go through and enforce a valid positive as well, good luck. A fair, valid reason to neg someone is because you paid for it, and you want to, same as positive. When dealing with this, the comment should just be removed and the points left.
Last, but not least, a response really isn't needed to it. It happens, get over it. I've suggested anymnity with staff actions to reduce it, but have been told that's not needed. We all get people bitching at us, get over it.