Unless you have some kind of actual evidence of someone being a criminal then you should not post as such. I do think that it is an overreaction for him to give you negative trust over two posts (this is much less of a threshold then what TECSHARE) had when giving negative trust to armis).
I do think that his many self moderated threads are very sketchy as they prevent people from asking honest questions about what he is selling.
I understand that and it was meant to be as a joke and I messaged him apologizing if I offended him and that I'd watch what I posted in the marketplace in the future but never received a response after waiting two days. I think he's overreacted given that he's misusing the trust system to ruin my standing by saying not to trust me (That I'm a criminal) and using the negative rep that's only supposed to be used for "Negative - You were scammed or you strongly believe that this person is a scammer.". I've seen TBZ in OTC and read his posts on the forum and I wouldn't be saying this if I didn't strongly suspect it. Not only with TBZ but like you said with TECHSHARE, people will use their opinions to ruin other legitimate members reputation's for nothing at all and I don't think that helps the site. Obviously I thought I was joking and I didn't think anyone would take offense to my post or else I wouldn't of posted it because I have nothing against TBZ or J.Socal. I don't think it displays good judgment to ruin my reputation over something so small and then retaliate by editing his original post when I negative repped him for misusing the trust system. I think in order to have your account show up as negative you have to scam someone, show strong tendencies to scam, or just be a plain asshole around the forums like El Cabron. I think there should be a handful of people that carry that weight on the forum and you'd have to go through them and they will decide if it's warranted or not, because with all these people it's impossible to tell if it's warranted or not. I don't think allowing people to post to have their negative feedback removed is a good idea because it'd require a lot of work but I think if my account is going to show up as -6/-1 , I should have to do something a lot worse.