Well, mission partly accomplished. I got him to own up at least. He's spinning the "I didn't know any better" angle. When I noted him about the matter, he refused to confess to it even being derivative. "I wrote all of my stories. You don't have any proof, so you're just some random troll who decided to harass me of all people for some mysterious reason, so I'm gonna block you know." was the jist of his response. Like I said- he wasn't counting on there being any proof.