Don't know how many times it needs to be said. Goobue is a "gift", not a challenge, unless you count walking outside challenging. Other MMO's throw gifts at people all the time. Goobue is a gift from SE for sticking with them in 1.0. There are no mailboxes in the game, you cannot have the goobue sent to you, if they could, they would. However, they were able to give you a little preview of BRD AF and give you a nice little segment before getting the Goobue.