Mr Potato

I saw it in a book of sorts. And i was wondering what sort of person he is or was for that matter. Basically i've come across an old document of sorts, which stated and i quote: Err well one more thing, try saying "evil cowgod" on the tip.it forums and email me if its still censored to *14 year old australian kid* :P: So i was wondering why was it censored before. that is all.

Who was the Evil Cowgod?