Simple, but how does one go about removing negative trust?
Step one is to stop being a scammer, but in your case that's gonna be highly unlikely. You probably bought your account, am I right? You bought it with the old scammer tag along with it? I LOL'ed whilst viewing your trust page, because while your account is well-aged, you're still a noob.
OP, just be a productive member of this forum and don't worry about getting trust. Why does it concern you, anyway? That's what other people are wondering even if they don't ask it. A lot of people around here want to get trusted in order to scam, so your question is suspicious.