Other than the data outlier of the US basically no nation considers hate speech to be free speech. The US has plenty of asinine speech restrictions too that no one seems to find a 1st amendment problem with, like broadcasting a recent marvel film on my own personal website.
Who’s requiring them? Nobody in the US if that’s where they’re operating. The issue is that that content is so off-putting to the average person that it kills the platform. Nobody is hanging around a site full of hate speech unless that’s specifically what they’re looking for.
Free speech, no matter how disgusting, is constitutional in the US. This is a legal use case of crypto.
Another is micropayments for content or for upvotes with Lightning Network, for example https://stacker.news