This tipping project was born of a hackathon combining cryptocurrency (cool) and supporting open source projects. Awesome!
Then when people started getting tipped tiny amounts it generated spam... annoying, but it was fixed.
It's a bit outrageous to claim that emailing someone after they have received free money (over some threshold) to invite them to accept it is going over the line.
Claims about taxes, etc.. are laughable. HOW DARE YOU GIVE ME FREE MONEY AND ALLOW ME TO DECLINE IT. Give me a break.
Overall the tone of alexanderz is extremely reasonable. It is not clear to me why the equivalent of a social-site invite being emailed on behalf of some user is suddenly worth getting angry and talking about international spam law. Especially when the exact same opt-out functionality exists. Click one button and never seen another email.. what's the deal here.