admins. He did things that the admins will normally do to people and their posts, such as ban innocent users and delete posts/drawings for no reason. Many variations of this user are still around and mostly posted in the Wii Fit U community and New Super Luigi U Community.
When the real admins discovered him, his Mii and name were quickly hidden. He was later banned as well (although a few other users made mock admin miis)
There have been multiple Admin accounts. Some examples of the NNIDs are: