@s8n more precisely, we refuse to censor what content one can access from QOTO. Our own users are held to the rules on our about page, and violating the rules can get your content removed or your account silenced/suspended, so QOTO shouldn't originate any hateful content itself. It's analogous to Postel's Law: "be conservative in what you send, be liberal in what you accept".

For the most part this works really well - our content is acceptable to most instances, and our users are generally willing to behave reasonably. There are exceptions - as @oskay mentioned, some server admins can't stand that we even federate with instances that allow content they wouldn't want to see; on the other side, we have removed users who can't bring themselves to follow the rules. But you can't please everyone.