The tilde (~) has been used as a prefix for usernames on multi-user UNIX systems for a very long time. https://unix.stackexchange.com/questions/423962/what-is-

The tilde (~) has been used as a prefix for usernames on multi-user UNIX systems for a very long time. https://unix.stackexchange.com/questions/423962/what-is-a-tilde-when-used-as-a-prefix-to-a-path https://unix.stackexchange.com/questions/423962/what-is-a-ti... In fact, I believe some of these small websites are just UNIX systems that allow the public to have accounts in them.