it is the seller who leave false positives that need banning.

if every one of them had opened and closed a non paying bidder dispute, that buyer would have no-where to shop, as they'd have at least 12 strikes, but the sellers total disregard for ebay rules means that we, other sellers, suffer instead.

I block all bidders with more than 1 npb strike, and I know many many other sellers do too.

work the system and such numpty bidders wont annoy you or other sellers again,  buck the system and they get away with it.