Over twenty years ago I worked for a company who tried to sell Pseudonymity. http://www.zeroknowledge.com (https://web.archive.org/web/20010203195700/http://www.zerokn...)

You got 5 "Nyms" that could be used on a TOR type network. The network was made up of companies that set up exit nodes in exchange service fee. ISPs were a target but anyone who had a public server could sign up.

Some features were free with sign up. Firewall,form filler(early password manager) You could use a credit card to pay for the premium service.(Web Browsing,Secure Email, chat) There was a process to pay for the "nyms" anonymously for the justifiable paranoid. Sort of human to human crypto authentication and digital payment pre-blockchain.

Lasted a few years until venture capital ran out because nobody wanted Pseudonymity. They wanted free services and eventually got anti-Pseudonymity on facebook