Free speech has never been about forcing all (social or not) media platforms to publish the opinions of all people.
The concept of “free speech” that Elon Musk is chasing is noble in a twisted way I suppose. But it’s naive. Especially in the coming era of “AI”, where it will be increasingly easy to generate fake activity if you have the money.
I think people will seek platforms that do work like open forums, so you get the opinions and ideas of people outside your immediate network… but people will increasingly value that those opinions and ideas are held to a certain minimum standard. Otherwise the platforms will just be spammed to death by people with a zealous political agenda and state actors trying to amplify political divides.
I found the recent Kurzgesagt video on this topic illuminating, and an essential perspective when considering how to go forward with these social platforms