I don't know if he's trolling, but it doesn't look like anyone has bothered to tell him that its wrong to use a offline key.
He's only trying to defend himself, but he's just not very good at it. You're only making it worse by making a drama topic about him, and taking advantage of his little knowledge on computers, even if he claims he knows a lot about them. You should just appreciate the fact that he wanted to share a save.
