Good luck sir.
Good luck sir.
Posting data to a remote system, with the clear intent of taking a thing of value from another person without permission. Perhaps it falls between the cracks, but I'd be reasonably surprised if it doesn't come under this or another similar act.
I'm sure you could have a pretty good argument in court if they went after you using CFAA. Other theft and fraud laws might cover it without issue though, just saying CFAA might not be the right choice here.
I don't know about the additional "unauthorised access" but I'd be surprised if someone can't make a case from cracking a password to do something on a network you know shouldn't be possible unless you were the person who owned the address.
"If someone figures it out, I will send you free sias"
I'd call that a clear invitation/authorization for anyone to try to crack his passphrase.
It's like if you find someone's (real) wallet, and you pick it up and contact the owner to ask where to drop it off. Rather than leaving it there and just telling the owner what street corner it's on.
Alternatively: imagine you were selected to sit as a juror in such a case. Would you nullify?