A. Let's not mince words, it hasn't done the US any favours.
B. The world is bigger than just the US, so I would say that while you may think it's not uncharted it is definitely not solved (and can therefore be called uncharted enough).
It’s done phenomenal favors for centuries. Aside from freedom of speech being very effective for growth in ideas and innovation, it’s prevented National religions, limited press interference, limited censorship.
It’s odd to even hear the idea that it’s a bad thing.
And strikingly illiberal, although both liberals and libertarians tend to agree on most matters of free speech.
For decades, liberals have fought for more freedom of speech, even in grotesque situations[0], and now we throw it all away, because we're suddenly winning?
0. https://www.aclu.org/press-releases/aclu-em-defends-kkks-rig...
I'm fairly confident it won't be laissez faire in the future either. That's coz there's a consolidation of media platforms and a wave of populist authoritarianism sweeping the world, not coz censorship ever fixed anything.