Some people should not be allowed to buy online.
Fortunately for the sellers, eBay does not use Feedback to assess member accounts.
I guess this grumpypants does not know there is a Dispute system for failed transactions.
And I for one don't think we should tell him.
Just let him go on being "smart" .
All edge and no point.
Also fortunate that most eBayers think even a 95% FB rating is an A or even an A+.