I put a Korg M1 Synthesiser on recently, despite me insisting on a feedback minimum of 10 the winning bidder had only been on Ebay for less than a month, had Zero & tried to offer me direct bank transfer then postal orders (both known scam methods).
So I have cancelled the sale, I'll relist it again in a while.
Pity, I was looking foreward to £160 for it, would have come in useful.