He "sold" me hack'd and then refunded because the item wasn't sent to him.
Also chiming in to say avoid.
He did refund me promptly though, and strung me a long for a full week so I really don't know what the gameplan was.
Should have asked for timestamp first but he messaged me offering to sell and I couldn't resist.
I suspect he wanted the funds to pay his Duck bill (pardon the pun).