> We have assigned port number 22 to ssh, with you as the point of contact. Joyce
Those were the early days when you could be designated as the point of a contact for a TCP port connection number and expect not to be swamped by emails!
I used to have a registered port (in the 3000s) - didn’t get a lot of spam, but once I got a very angry phone call (!!!) from someone that tracked me down because their firewall blocked an incoming request in that port. They did their own research and decided it was my fault.
Those were the early days when you could be designated as the point of a contact for a TCP port connection number and expect not to be swamped by emails!