This particular piece of pony pov verse world building was written by Wolfram-and-hart.
http://wolfram-and-hart.deviantart.com/
Among the dragons first touched by the Rainbow of Darkness, there was one named Pemarulpuff who developed a very unorthodox lifestyle even for dragons. Heathspike, being a more unorthodox dragon himself, defended his choices, even to Tiamat. Pemarulpuff reminded Heathspike of the Moochick, and the two were close friends . He took no hoard of jewels, never fought others, and seemed content to wander among other peoples and making friends. He was especially known as a friend to children and helped them whenever pos