Scambusting itself is becoming a form of trust farming (not just by Quickseller). Steamroll over a bunch of people, pretend you stopped a bunch of scammers, collect positive ratings, and abuse trusted position even more. This is one of the main reasons I have argued so heavily against "scambusting" in general. People who are wronged will bring it to light, we don't need internet precrime police running around everywhere interfering with what would otherwise be voluntary transactions in most cases.
So are you telling there must not be any scambusters in this forum?
There would definitely be much fewer posts on meta complaining about trust abuse so of course it would be positive. The only problem is there would be so much more threads on scam accusations

Do you really believe that a handful of virtual mallcops are going to stop the tsunami of fraud on the internet? Doubtful. People who are wronged tend to seek justice and bring offenders to light. Preventative precrime type scambusting is inefficient, it also harms reputable users because people want to play private investigator and pump up their trust ratings by harassing people and negative rate them over the flimsiest of pretenses. They get entertained, they look like they are doing something to help, they collect positive trust, then use that trust to abuse their position even more.
Instead of trying to stop the ocean from flooding in why don't you teach some people how to make a boat? We should be focusing on teaching people how to protect themselves, not going on crusades looking for people to crucify to satiate the boredom of a handful of asshats at the expense of the entire community.