The problem isn't just limited to eBay either, I sold a 1Th/s miner to someone who clearly had no idea what they were doing, claimed first that the PSU was malfunctioning (which was a lie, it was a brand new Seasonic 1250W), then claimed the controller card was broken (also not true), and then wouldn't respond to my very detailed support emails, and then Amazon ended up clearing the return on a used item which was sold 'as is' and this happened over the course of two months. Now a miner that was worth 2k usd, is now worth less than half that now and Amazon is trying to go after me for the full amount even though I have photographic evidence that the buyer opened it up, lost one of the screws, replaced it with a completely different one, and then shipped back a completely different (and used) Ethernet cord several days later.

When he asked how does it plug into the USB port, I knew this was gonna be a problem. The jerk had the balls to leave a bad review saying I knew 'nothing about what I was selling' even though I have been mining for years.

Long story short, its a gamble because eBay/Amazon almost always side with the buyer, even if you can prove you are in the right. I had 10+ successful sales on eBay, but as the scams increase, and the reliability of the hardware decreases, its a recipe for disaster and eBay/Amazon get their 15% cut either way, or more if the customer claims 'item not as described'.

Link a bank account with low, or no overdraft, and use a very low limit credit card, otherwise they will try to charge you the full amount. Oh and good luck trying to make another account, they have many measures in place to figure that out quickly just because some idiot got away with scamming you and their archaic feedback system.

BFL, and others continue to scam without any fucks given, but the smaller resellers are the ones who always get screwed selling increasingly obsolete hardware.

Good luck out there.