Our concepts of free speech, censorship and moderation are simply outdated on modern social media - when you have systems designed to encourage and spread low-effort, novel, emotional and manipulative content (e.g. twitter), no amount of "tweaks" to such systems can fix the problem.
Instead of trying to fix systems originally designed for marketing, why not actually design systems meant for disseminating and checking information from the ground up? I bet that would look way different compared to twitter or facebook.
It doesn't have to involve moderation or censorship - it could just mean giving disproporitonately more powerful voice to experts willing to explain disinformation, for example (rather than having their voice drown in the retweet popularity contest).
Hilariously enough, this is what people said about the invention of both writing and the printing press.
I disagree wholeheartedly. These concepts are now more important than ever in human history.
There's a solution for this, based on prediction markets. Essentially experts make "bets" on various things and are rewarded for correct predictions. The more correct predictions they make, they more "points" they have to get their viewpoints broadcast. And conversely, quacks and charlatans that cannot model the world scientifically make few accurate predictions and get drowned out.
Also, how many times have markets been severely manipulated?
This is the natural state anyway because most people are idiots about most things.
I have no doubt we can do better, if we actually tried to build social media with the right tools and incentives.
We could (and should) demand better.
(I didn't down vote him, BTW. His comment is relevant)