Call me a cynic, but I don't believe anyone of the admins would bother doing this for a jr. member with no established reputation, as far as I'm aware so far the name change was only done for very prominent forum figures. If a new member would request it, I'm sure the admins won't bother to even reply, and you can totally understand that, because if they started doing this, everyone would start requesting it, and they will quickly become overwhelmed with requests.