"Hate speech" is ill-defined, basically it's just "speech that people with enough power don't like." and what that is can changes at any time.

Many people more intelligent than you (and me) have spent many decades thinking about this issue. E.g. if you can show in court that KF is defaming someone, you can go after them, or if you can show they're involved in other illegal activities. But "I don't like some of the things they're saying on their own forum" is NOT a valid reason.

The Soviet equivalent of this is saying you support free speech but not for capitalists.