I made the mistake of advertising one of my sites as 'free speech', got over run with lunatics, alt-right, nazis and flat earthers!

Their money is as good as anyone else's (better even because they appreciate having a platform that doesn't kick them off) but sanity wise it's quite draining and not something I'd recommend.

When it really comes down to it 'free speech' is just whatever the owners of the platform tolerate, and that changes from site to site.