User name OR Content Deleted 12515670

This user named "user name" or [ Content Deleted 12515670 ] is an unknown user of ROBLOX that on the page here, http://api.roblox.com/docs#Users, on the section "Returns" is the player's username, which is user name.

User name's friends.
User name has no friends, he is following builderman, and the ROBLOX page shows he is following four users, but only two are visible, which are the users "Followall" and builderman.

Why I think this user exists..
I have no evidence why this user exists, but it was probably used for testing purposes. The user's name only appears on the ROBLOX API page (link is above) and his friends list, https://web.roblox.com/users/12345678/friends#!/followers.