Hmm...That UN is only a month old, I'm confused now.
i believe you can... but don't quote me on it.
If you hover over her name it has a + sign in between...

I miiight be wrong, but, if I recall correctly, you can have spaces if you create your account name from the get-go with spaces, but you can not use an ISS and have spaces.
Hmm..maybe the best thing to do would be to file a ticket.
I think that this is correct.
have you seen an url with a space in it before?
the + is for that
(Because text affects the width of your signature, we suggest testing with all text removed to be sure your width is correct.)