Underneath all of this seems to be this assumption that Zuckerberg, Jack Dorsey etc. are benevolent, and won't betray you. Putting aside whether that's right, it's incredibly short-sighted. Jack Dorsey owns 2% of Twitter's stock. Twitter is owned by index funds - they have control, not Jack. You don't want private equity dictating what kind of propaganda you're allowed to see.
I don’t trust anyone to “not betray me.” I trust that if Twitter makes unpopular moderation decisions, they will lose in the marketplace. But if they make popular decisions, they will succeed in the marketplace, even if those decisions piss some people off. This is the basis for all platform moderation, including here on HN, or even something as simple as a grocery store asking a shouting customer to leave.
Look, I'm not trying to argue this "wasn't a special case". I'm saying, it doesn't matter. If you want a president silenced, have congress vote on it, not Vanguard and Goldman Sachs.
You're giving private equity the power to unilaterally decide what they deem "threatening", and I expect them to abuse that power. Like, obviously they'll abuse it, it's private equity. Why on earth wouldn't they?
This is not a bad thing. The people who are really dedicated will still have a place to gather and communicate, but pedestrians and kids will have a lower chance of getting tricked into giving their time, money, and maybe even their lives to amoral scammers.