It is, thankfully, illegal in France, and as such Liberapay does have to police it. Again, if you want to spread hate speech, you'll have to use another platform.
Most of the time no one actually "wants to spread hate speech". It's a category used to gain power by evoking government backed oppression of ideological enemies.
...and in some rare cases there is also actual hate speech in the sense of a countries respective laws. (Those laws are pretty diverse and far from universal.)
In functioning legal systems this latter, tiny set of cases is determined by judges. In other systems it's chosen through other means like corporations, priests, some mob or something.
With platforms as the rising way of public discourse courts are unprepared and just hand it off to somebody else. ...that doesn't mean it's the responsible thing to do.
People will probably still think that's great until the integrated corporations decide to switch sides and start to promote non-mainstream positions.
