The only time I ever tried to sell some stuff on Ebay, I had a very weird experience. I put it up for auction with a minimum, and a week later someone won the auction at what I thought was a decent price. Then... they deleted their account instead of paying for the item. I raised the issue with Ebay, and they gave me a credit in the amount I had paid for the listing. So I listed it again, and someone won the auction once again ... and the same thing happened! They deleted their entire Ebay account instead of paying for the item they presumably had wanted to purchase.

At that point I gave up. I think I have $14 in Ebay seller credit still in my account from 10 years ago. My guess is that there was some kind of malfunction or someone was using a bot to bid on particular products. Weird experience. I've moved to selling stuff on Craigslist, and never had a problem with a sale.