They're taking the only rational position available. * Absolutely censoring nothing is an insane position to take. Even just spammers would flood such a site,

They're taking the only rational position available. * Absolutely censoring nothing is an insane position to take. Even just spammers would flood such a site, let alone super extreme people like outright Nazis or KKK members. The typical person would have no interest in sharing a website with people like that, and they would flee. Very few people want to be posting on 4chan (and IIRC even 4chan has some moderation these days, underscoring the point). * On the other hand, you can't realistically expect a company to take full responsibility for every piece of user generated content immediately. There's no way to do this well at scale, other than to use algorithms to get rid of what seems like the worst stuff, and deal with the grey areas when users submit reports of bad behavior. It's not feasible for a site that lets users upload random things, resulting in millions of pieces of new content daily, to manually approve every single one.