Note on profile creation page that username cannot be changed
It appears that once set, a username cannot be changed either through the UI or CLI commands, even by admins.
I'm guessing this is because of how they're stored in the db? If not, it'd be great to allow people to change their usernames, or at least allow admins to change them through the CLI.
If it would fundamentally not be possible (or you just don't want to support that) then I think a UI improvement would be on /register/profile
to add the text "Once created, your username cannot be changed." to the end of "This identifier is unique to your profile. It allows others to find you."
Edited by Thomas