I used to have a rather short, pithy gmail address back in the day. I binned it for gerdesj@ instead - a username which I use nearly everywhere.

A one char ID on a web app is all very well but is the extra hassle worth it?

Nope, just seems cool.

Yeah, same rationale that Elon shared for renaming Twitter to X, so for good or evil you have that trillionaire mindset pinned down.

My username was f before Elon made Twitter X.

Bit of a leap.