Why do you mention wifi piggy-backing? Isn't it possible to submit proof of work from mining over Tor, and consequently acquire a Tor-level of anonymity?
Or is there a risk that a Tor exit node hi-jack proof of work packets?
I know it's a moot question when the mining option is lost, ultimately hindering advanced users from having free speech.. just wanting to know if using Tor for a mining operation is a bad idea.
RE: Hardfork Suggestion: Anonymous Steem Account Creation On-Chain