The defense (edit: whoops, i mean plaintiff) also has to prove they lost business because of the statement, very tough to do. So I think he's safe. I think he's just having fun anyway. It wouldn't be good PR for zftr to go after anybody and I'm sure they've got bigger fish to fry.
Well, his post is actually too garbled to allow a canonical parsing but it exposed him as a trolling sockmuppet.
As regards to ziftrCOIN, hallucinating conspiracy shapes in the clouds is mildly entertaining, especially when reality is quite so prosaic:
https://bitcointalk.org/index.php?topic=917735.0;allCheers
Graham