TLDR: You can be super racist, describe how you're going to kill everyone you don't like, spread crazy fake stories without any consequence.

It's liberal in the same way it would be liberal to have a party where you walk around naked and smear feces on each other.

Definitely a liberal party, but not one that most people want to participate in. Most people would rather have moderation where you're not allow to scream the N word at blacks. Which concentrates N word screamers and similar onto these free speech forums