What do you think of about Realism?

I stumbled upon this site some time ago http://www.churchofreality.org/ And I thought it was interesting, And all the time I've been an atheist I've never heard of Realism until I found that site. It is a religion based on believing in anything that is actually real. Though it could just be a joke and I'm too stupid to get it. Is Realism/ChurchofReality essentially the same thing as being an Atheist/freethinker? Thanks for your time reading this. -Mike
Atheist Answer: 

You're not the first one to ask about the Church of Reality. Here's the previous question on the subject.

- SmartLX