That’s really fishy. What a slimy practice...Here an example from one of his auctions:
This person has 450 bids, 100% with Joe.
Bid on 73 items?
30-Day Summary Total bids: 450Items bid on: 73Bid activity (%) with this seller: 100% View attachment 788124Bid retractions: 2Bid retractions (6 months): 20