I recently sold an amp head on Ebay, I've never really had any serious issues with it. Ok people 'forget' to pay but if someone else has tried to bid you have 'second chance offer' so you can offer it to them and still sell it. Haven't had to use it before though cos eventually the issue has been resolved.
Any guitar gear I've sold has usually been a cash on collection jobby, that way they can see what they're taking away and I get cash meaning I avoid all that paypal charges cr@p. Works nicely for both parties.
Some people on there are right idiots but you can report and block them. I tried selling a used check shirt on there a few years back, clearly listed and showed in photos the pattern on the check which looked like brown stains but they were genuine marks as part of the design, and the bidder accepts the condition of the item. He complained upon receipt of delivery that it was a 'stain'. Endless messages and disputes commenced, and he was adamant he would get his money back, so he opened a case. I fought until the end but eventually lost and he sent it back and got his money back. Still have that shirt actually, stupid prick.
