LOTB the problem is not with buyer protection but the fact that the seller has no protection against a bank chargeback.

Although it is very rarely reported on the boards that this has happened there have been a few cases.

I do know of at least one that was resolved after the seller reported the fraudster to the local police who 'suggested' to the buyer that they paid up and another one from many years ago when the seller happened to have a bunch of motorbike riding mates with a love of baseball!