He's a softcore troll, and you may think he did nothing but that's because you're stupid and don't understand psycology or common sense.
Koochieboy basically egged everyone in the valve thread on to argue about ponies because he knew when he saw the term ponies in the valve book, that if he posted it, it would cause a stuff storm.
He merely quoted a piece from the book to point out that for some reason, Valve mentioned ponies. You're the stupid one here.
He then followed it up with several of his typical 'i'm trollin u guys tee hee jk' posts, but since he will never admit to trolling he probably wont be banned soon.
If you actually looked at his recent posts after he posted that, you will find no "I'm just trolling" posts or ANYTHING similar to that in any way possible.
Yes, I do agree posting his avatar as a response to one of the replies is stupid, but there were no posts of him being aggressive to other users. Next time, actually find your evidence before you post it.