I can’t help but being sceptical that this is based on a cryptocurrency. There are some good ideas in nym, but I’ll stick with Tor for now.

I don’t know if you’ve heard about Lightning Network, but this is a layer on top of the bitcoin blockchain that is much more suitable for small payments. That’s how I do most of my bitcoin payments now, and while it’s still a maturing technology, it mostly works well. Transactions are fast and inexpensive.