There's a local bicycle coop run by a guy who does this kind of stuff. He has two different eBay accounts, one with the coop's name and one generic one that I think he uses to sell stuff he takes from the coop for personal profit. He generally sells beat up frames and parts and overprices them. Lots of frames with a lot of paint loss and rust listed as "good used condition".
A good example is a beat up early 80s Schwinn Sports Tourer he had up, one of the low end lugged red and black ones made by Giant in Taiwan. The title of the listing said "MADE IN CHICAGO" in all caps, which is clearly wrong, and it was priced around $400. I messaged him with no response. I tried to get eBay to take the listing down, but didn't get anywhere as the customer service rep couldn't really understand what I was saying.