> sue for trademark infringements

Yeah, maybe at the piracy trademark comission on pirate island... For obvious reasons Vanced had no trademark on anything and thus can't sue for trademark infringements.

They could possibly sue for a copyright infringement, but for that they'd have to prove that they do in fact hold a copyright on whatever they're suing for. They'd have to prove that (whatever) indeed is either (a) an original work that's protected under copyright or (b) it's a derivative work that's protected under copyright.