Special, emoji-like characters in Steam names?

[Lou the Lou]

I was just perusing the forums for a game, and I came across something I'd never seen before: a user with a special character in their name. Not a #, $ ,%, etc., but something you'd find in the emoji list on a phone. It's a green box with a check mark in it.

Is this something special to Steam, or does Steam allow these sorts of characters in user names?

The post in question: http://steamcommunity.com/app/454650/discussions/0/133256959381154980/

It caught my eye because the green checkmark/box stands out against all the other plain names of authors in the list of threads. It made me think he's some kind of mod/admin/dev/etc., but I can find no other evidence of that.

[HEART]

Like mine? It is a unicode emoji. Just google "unicode emoji" and you well get a ton of lists.

[Lou the Lou]

Yes, like yours. I didn't realize Steam allowed these characters within user names. Neat.

[HEART]

Yes. As stated Steam uses unicode so they work.

[gato ron ron llego con su rolex]

Jjajaja que ratas

[TURKO⚡]

[Wren]

This thread was quite old before the recent post, so we're locking it to prevent confusion.