FWIW, I don't think the mods care about someone's feedback score being high or low, they care about people not saying "I backed out of a trade" and then expecting no repercussions.
If anything, I would say that your feedback being over 100 should be the concern. You built a fairly good reputation and then threw it away with wild accusations and bald-faced lies.
I've said this before, but I love CAG as it was the only place I found soon after moving here to link my love of gaming and directly to people in which I could trade with.
To be completely honest, I worked my ass off on this site to always do what was right and to stand by my promises, regardless of profit or difficulty. Once I say something, I do my best to follow-through. So if you want to complain about something, it certainly shouldn't be you feeling put upon for being held accountable for your actions.