- Linus Torvalds, creator of Linux, does not believe in cryptocurrencies, calling them a vehicle for scams and a Ponzi scheme.
- Torvalds was once rumored to be Bitcoin creator Satoshi Nakamoto, but he clarified it was a joke and denied owning a Bitcoin fortune.
- Torvalds also dismissed the idea of technological singularity as a bedtime story for children, saying continuous exponential growth does not make sense.
Another use I can think of is paying for a domain and registering it with fake info. Registrars require pretty sensitive information, and apparently can check if it is real by comparing it to the info tied to a card used to pay, which crypto eliminates.
Wish there were more XMR-accepting registrars though.
One time phone numbers are another good thing, to avoid the ever increasing tracking we are all exposed to.