Hello there! My site has users who would like to use emoji in their usernames and I’m trying to find out if that’s possible for them. I was able to find the setting that lets you broaden the unicode options for usernames:
but as far as I can tell, it doesn’t seem to work with emoji. Here’s two cases, one where things work as I’d expect and one where they don’t:
Case 1 - Working as Expected 
Unicode usernames are allowed, certain non-ASCII unicode characters are permitted:
Results in a username using those characters being accepted:
Case 2 - Not Working as Expected 
Unicode usernames are allowed, specific emoji characters are permitted:
But a username using the permitted character is not accepted:
I get the same result if I leave allowed unicode username characters blank, i.e. permitting everything with no regex whitelist for characters.
My Question:
Is it possible to allow emoji in usernames?