4chan seems to do ok. Or maybe not, depending on your perspective. There are a ton of smaller chan style boards that are awesome and don't seem to have the problems everyone is talking about here.
It's not really comparable because their boards have a limited number of active posts and the bigger boards get so much traffic anything is gone within a few minutes. So if you complain about something and they don't respond within the hour, it's gone anyway.
Still they have big problems with spam, ddos attacks and moderator turnover and that is after they delegate the bigger problems to /b to be mostly ignored.
The double-edged sword of not moderating based on racism and other undesirable behavior is that your job as a moderator is much easier, but you have the terrible reputation that 4chan has. I am personally fine with boards that allow pretty much everything other than CP and other illegal content. I think this is how a number of chan boards operate.
Is this "If you can't beat em, join em" Nazi edition? Half the challenge of the other boards out there is keeping the waste of molecules that constitutes 4chan away.
Out of all of the people who would like to frequent message board, some of them can't stand boards with a lot of censorship; and others can't stand boards which don't have strong moderation.
Surely some forum hosts will desire to serve those users who desire strong moderation, and for these forum hosts, not censoring or moderating isn't a solution.
