The content of this article is not part of official Warcraft lore, but has nevertheless become part of the World of Warcraft culture or community.
The infamous screenshot
Screenshots of your animal forms was a thread in the WoW druid forum. It was started, innocently enough, by Pando, a tauren druid from Proudmoore.
Thought it would be cool to see everyone in their animal forms, especially if you capture a screenie that's funny/cute! So post em here :)
http://i7.photobucket.com/albums/y287/ShadowedFate/WoWScrnShot_101207_194709.jpg
Aww, I look pissed lol
The thread quickly snowballed into many other druids posting the exact same picture, often describing how they look in a new piece of gear they just obtained, or showing off their full epic armor sets. It soon reached the 1000 post cap in this manner.
The entire incident played on the frustrations that some druids have where despite significant advances in level and gear, their animal forms look exactly the same that they do when they are first obtained.