Unpaid Item Claim, should I leave a feedback or just move on?

basically guy snipes my auction last second and beats out 2 other bidders. Then he refuses to pay, says "bank problems", and asks if I can accept a lower amount.

I refuse, communicate clearly, and then open an unpaid item case 4 days later. He later tells me to go "F yourself you sl*t", verbatim.

I talk with eBay via phone, I report him for harassment, etc. The unpaid item case will close tomorrow, and he will get an invisible "strike" on his account.

My question is, should I leave a negative feedback for him or just move on? The feedback will be "neutral" since negative is no longer an option. Will he be able to make up some phoney commment on my account as well?

I know its all a waste of time but I feel people gotta pay one way or another for their dumb behavior.

any eBay big sellers, whats your advice? He's already blackslisted on my account.