First thing you need to do - stop worrying about ludicrous retaliatory feedback. It's unavoidable but it has no effect on you and you shouldn't waste time appealing it. Trust is not moderated. You will not get it removed unless the sender agrees to do that (in rare cases extreme trust spam may be removed but don't count on that).

Second, ban evasion is a violation of forum rules so should be reported to moderators. There is no need for red trust for rule violations except perhaps in rare cases, for example someone is spreading malware while moderators are asleep - you might want to put a warning on user's account until they get banned.

I'm not certain your entire approach is a good one. Don't make it into a "job" or a "hobby". Post trust ratings only when they're warranted and take your time to research the issues.