I think this man doesn't just needs to be jailed and fined, rather just needs a therapist because he is just too delusional after all these years and being officially ruled out as Satoshi Nakamoto, for lying and forgery of his so called claims.
I disagree, he would totally deserve some jail time. The only reason he keeps claiming he's Satoshi is to get some kind of personal gain, probably putting pressure on the developers or something like that, so he's trying to jeopardize the whole system for some stupid gain. And he's also playing some dangerous game because Satoshi is a billionaire, if the wrong person believes, well, not sure how that would end...