OP, based on what JohhnyUA wrote in your feedback it doesn't really appear to be justified.  It looks like he just doesn't agree with your assessments on a few matters, which sort of comes down to a matter of opinion--and leaving somebody a neg based on that isn't what Theymos wants the trust system used for.  I don't know if anyone was falsely accused, because I haven't looked into the matter and haven't even read the entire OP here but you ought to be free to express your opinions and that includes calling out scams as you see them.  If something isn't actually a scam, the accused should make their case and let the community decide on it.

When it comes to making false accusations, people should really have more of a spine about that sort of thing.  I don't know how many times I've been slandered, and if you look at my trust page members have accused me of a lot of things I didn't do.  And you'll note that I haven't retaliated with red trust or even made a big deal out of it. 

I would advise johhnyUA to remove these ratings and make his grievances via public discussion. While I disagree with KTChampion's use of the trust system, I find the types who take it upon themselves to be forum police most often are unwilling to change their behavior. The only effective method of combating this is public discussion of the damages it causes, not by using the trust system to fight out these battles.