Is there any protocol for punishing time wasters whom don't pay for their winning bids?

[plpmr]

adding to tressygirl good advice -

There's also a protocol for sellers who breaks eBay rules and are guilty of serious feedback abuse by leaving false positives announcing that a buyer did not pay.

A buyer can appeal an unpaid strike and report the feedback you left, eBay will remove the comment and that will damage your account.