Jacob Boerema commented:
@averi jboerema as username is fine with me.
However you may want to adjust point 4 on the link you supplied because to me it suggests that keeping your name when you already have an account is ok, last part made bold by me:
However, in case your existing gnome.org account name does not fulfill the above rules, you may have your gnome.org account name changed, should you want so.