Malcolm, why would carmansonline report him as a NPB? He paid! I'd say it would depend on how he paid -- if it was through BidPay, or some other way that he can't reverse, I'd probably ship. (Being NARU has no bearing on the fact that he bought AND PAID.) If it was paid through PayPal, I'd be tempted to refund with a note explaining that I don't ship to Korea.
But yes, I'd block him.
Glenda
Glenda