My guess is a guy who got scammed, now trying to recoup his loss. Years ago I found a guy selling a fake single shot pistol on Gunbroker. I emailed him to tell him it was a fake. Several foul emails later, honestly after the first ones, mine entered the nuclear state as well. He confessed he was selling it for an uncle that had gotten scammed. I forwarded that to Gunbroker. I saw it on other sites, but thankfully no one ever bid as far as I could tell.