I tried to make a community without censorship at one time. It seemed like a simple enough goal. After all, who was I to judge what's right and wrong? I'd let people post anything they wanted, and if it wasn't illegal, it would be allowed. It also provided a fairly clear line on what was acceptable and I liked that concept.

Well, it went great for a short while. After a couple of years it started to get worse though. A small group of people started posting racist comments and topics. Long term members would then ask why this racism was allowed, and I defended their free speech. Then I started to lose some of the friendly regulars from the community. They got tired of being insulted, and if the community didn't censor of remove racist comments, they argued I was supporting them and giving them a platform to spread hate.

As I watched the community degrade, I realized censorship would be required if I wanted the community to develop into what I envisioned and so I changed course.

In short, no censorship is going to give you a certain type of community, so before starting consider if this is the type of social network you want to bring into the world.