But the point of an MMO is to share a space with thousands of people so individual servers with differing rules don’t really work in that context. And individual servers doing moderation is the same as individual server based games doing moderation, it’s just a difference in scale. I’m sure there are loads of other games people can play. For example Rust is infamous for a lack of moderation and has all the racist and otherwise edgey content in it your heart desires.