I don’t think so, and while I initially agreed with you (which is why real name is there too — I turned that on), upon further reflection, I strongly suspect that username is necessary so you can @refer to people easily.
Also, Full Name is optional, though I suppose the system could fallback to usernames if no full name is present. But I think the
@username mentions would look strange as
@Full Name in posts.
If you don’t know someone’s username, you can actually use the person’s name to @refer:
Good points, and thanks for sharing the tip about looking up names for @refer. Clearly I need to delete some of my test accounts.
And Full Name wouldn’t be unique, while presumably username must be.
(My first response to a Discourse post )