there is no userid, unfortunately. it’s just a long random wallet id. you generate one when you create a wallet. but no one has to know it’s related to you. users can be tied to wallets using fingerprinting techniques. presumably the same could be done with this wallet. maybe it’s an early adopter sitting on 100mil in…

bitcoin works like internet cash. if you throw cash in the rubbish bin... that’s it, it’s gone.

Anyone can buy decent mining equipment on alibaba. You usually don’t make more than 10% return on your investment over 6 months. Which is, I guess, a pretty good return.