Why all the hate for RedCream?

I mean, what did he do that made 99% of people make fun of him =/

From what I have read, RedCream is what is known as a Charlatan. He would like people to think he is an all around well learned guy (Renaissance Man, as he puts it). But I have not seen him exhibit any real depth to his knowledge, for instance, he often fails in techinical arguements. It seems to me like his knowledge on a subject is limited to the Wikipedia article concerning it.