Why do I--lord of chaos and disharmony--side myself with creatures who stand for everything I'm against? Because the natural world rejects me, reality rejects me, I'm not meant to exist--but... these creatures... accept me. They accept me for who I am even though I have done some rather displeasing things to them--BUT, it was all in good fun. Hahahaha....
Picture source: http://aquagalaxy.deviantart.com/art/MLP-Discord-and-Fluttershy-440293868