it's true that if they are no longer registered, they cannot post feedback, I have to go through the unpaid item process to refund my listing fee though. Fucking pain in the arse.
What really annoys me is I have my preferences to block people who are not registered in th eUK as I only post to UK addresses. The dick is registered in the UK with that fake arse address and then he dupes a paypal email with payment confirmed and all that