Ouch, I guess there's a bureaucracy behind the ontology of any proof of work, although spam/email was a good use case but perhaps crypto is a finer expression,

Ouch, I guess there's a bureaucracy behind the ontology of any proof of work, although spam/email was a good use case but perhaps crypto is a finer expression, so the paper's main thesis is partially right but it's still used as a spam filter so I guess there's a utility there.