For all those saying govnt should control platforms like this bear in mind that the free market is working even in this case. A single person decided to take a massive social media private only after a few years of it being a bad actor (see anti free speech sentiment around Twitter.) In a socialist/state-run world any regulation would take years to pass to only then cripple the platform and make it a worse version of itself in many ways maybe except the primary goal of the regulation.

A non-public Twitter will have less pressure from the outside to "perform" and not taken hostage to follow the current dogmatic norms of the population allowing it to undergo much needed and necessary changes to make it a better platform.