Not harmless if this kind of thing spreads to pay for "normal" websites
I believe some countries have taken steps to ban these kinds of currencies (IIRC Russia and China head the list). If other countries do the same, then if a user sat in a jurisdiction that has banned cryptocurrencies inadvertently runs some of these cycles on their PC, could they be in trouble for unauthorised financial processing in some way?
Remember there are countries that lock up rape victims for unlawful sexual intercourse, so having some humourless official tell you it is your fault that your favourite social media site has changed its funding model and you're looking at doing time for something akin to money laundering might not be so far fetched.....
Biting the hand that feeds IT
