One of my friends still sells on eBay and has buyers pulling scams regularly. He lists stuff on message boards and other sources first, and uses eBay as a last

One of my friends still sells on eBay and has buyers pulling scams regularly. He lists stuff on message boards and other sources first, and uses eBay as a last resort. Personally I haven't been a seller on eBay in close to a decade. This isn't a solved problem but its certainly solvable because scammers should be pulling the trick repeatedly.