I've been on Xbox Live for a couple of years. I mainly play fighting games online. I'm competent but not really amazing at the ones I play. I don't use the microphone, and I only send insulting messages to people who send them to me first. But I looked at my reputation the other day and discovered to my surprise that I am marked for avoidance by 78% of the people I've played with. Apparently I'm a bad sportsman (not even sure what this means in the context of fighting games), I'm disruptive (???), and quit early (maybe my internet connection has been worse than it seems to me?).
I don't really feel like I've been judged fairly and, whether you believe me or not, I want to know if there's anything I can do to undo my rep and get a clean slate.