I informed him once that a frame he was selling was a Peugeot PR10 and not a PX10. He thanked me, but did not correct his listing. Just last week I told him that a wheelset with Normandy hubs he had listed as 8 speed freehub was obviously a freewheel. He waited until the auction closed to email me to say that the mistake was not intentional.
I've bought lots of stuff from him in the past and I've had no problems, but I don't completly trust him anymore. I'm bidding on one of his parts right now, but only because I can't find it anywhere else.