Discord is immortal - or at the very least he's lived a really long time - and sometimes, that can get boring, especially when you've promised to be (relatively) good. So, he decides to reap another form of chaos and insult as many ponies in Equestria as he can!
I don't know, I was bored and wrote this. I apologize in advance.
Inspired by Wowbagger the Infinitely Prolonged from HHG2TG and Arthur from Fable III