No, actually. I don't go to /b/. I can't even follow /b/; I try to keep track of a single thread or meme and it completely gets away from me. But as I said, there are some boards filled with blatant neo-Nazis, some filled with some of the world's more disgusting pornography, blah blah blah.

Now, if you want to call it "the last bastion of freedom [to spread hate ideologies, post loli hentai, etc]", go ahead. However, be clear that you are defending the freedom to commit immoral acts.

4chan is the Mal Reynolds of the internet, not Luke Skywalker.