That's odd, given that literally every platform I've seen proclaimed as pro free-speech moderates content to some degree or another, which implies no platform owner believes in free speech. And given that some editorial decisions must have been made WRT Hustler at some point (they didn't publish literally everything and anything,) I guess Larry Flynt never really believed in free speech either.
No, someone can __CLAIM__ to believe in free speech, but if they're not allowing it on their own platform then they really don't. There's a reason why the adage "actions speak louder than words" exists.