>4chan sucks because it is too moderated in everything but the speech.
>I would prefer just having rules about what speech is allowed or not
I'm not sure if you're serious. 4chan has an incredibly tiny amount of rules, one of them being no racism outside of /b/. Half of the forums are constantly bombarded by anti-black, anti-asian and anti-jewish racism. These posts do not get removed.
4chan sucks because it is too moderated in everything but the speech.
I would prefer just having rules about what speech is allowed or not and then give users full capability to use the site. Twitter does this pretty well.