Kujii speaks words of truth.
I try to limit the amount of pony that I post outside of Ponychan (I am a member of 3 boards, all of which have just EXPLODED with ponies and thus killed the general forum.)
I do however post in the MLP megathread, but not like I do on ponychan. What you see on the MLP thread is basically 1/50th what ponychan gets a day.
I will just say one thing, if somebody posts something that is just begging a pony image or macro, I will post it, but spoiler it and warn of the contents.