Who is RedCream abd why is he so loathsome?

I've seen endless articles complaining about RedCream, and I've seen a few of his comebacks (which seem annoying, but really not THAT annoying). How did RedCream first show up, and how did he earn the universal hatred of Anonymous?

It was originally believed that RedCream was one of the NIGGERS!, thus the hatred. Once it was found out that he was in fact Aryan, he has only been hated by NIGGERS! and fucktards.