Fly Eagles Fly!
The Cthulhu player, not the Football player.
Negative feedback for buyers was used as a threat by many unscrupulous power sellers. I am glad it's gone.
How was it being used? To extort people for more money? If so, that's a crime which can be prosecuted. If not, I don't see what the seller is looking to get from the buyer beyond the agreed upon payment. The idea that Negative feedback was being used against buyers seems implausible and silly to me. A much more likely scenario is the opposite, where its being used againt the seller.
Regardless, the solution isn't to remove the option for negative feedback, that's ludicrous. The entire community is based around the feedback system, and has been since its inception. What do they intend to replace it with?