I don't think you were all wrong - there's a difference between username and name. My name has a space in it, but they won't allow me to represent that in the u

I don't think you were all wrong - there's a difference between username and name. My name has a space in it, but they won't allow me to represent that in the username. And if my name is already used by someone else as their username, I can't use it as mine. This doesn't bother me, so long as my name is displayed properly in the UI (if at all).