I am an old old man
I just typed "handle" to refer to a username in a conversation with kinfae. In the early days of networked computing - I'm talking BBS here, although it persisted into the late 90s, I think - we used to say "handle" pretty much without thinking. We borrowed it from truckers on CBs. At some point it switched to username, and I haven't seen "handle" in years and years, so I don't know why I produced it... but isn't it better? I mean, why did we get rid of that term? User name, user id, screenname - those are all lame words for handle. Lame, lame, lame.
Kids these days.
Kids these days.