Sam Harris explained in his latest pod episode why he left Twitter, and if you're someone who's followed Sam's career, you already knew it had nothing to do with him "not being able to handle criticism" as this is the same guy who's received untold amounts of ridicule and threats criticism Islam and woke ideologies, as well as him hating on Trump for years.
Why Sam did it related back to the Alyssa Milano juxtaposition. He said it was making him a worse person. And he was starting to get resentment towards people he likes/liked and people he doesn't even know. And he didn't want to be that way anymore. He said his view of the world and humanity was becoming too negatively slanted because of this platform. And given he's not very active on it in the first place, he decided to leave.
And I don't blame him. He's 100% right, that's what this platform does to many people. I guarantee if the platform didn't exist, there would be far less polarization out there and less hatred for disagreement.
And he said Elon bringing Trump back had zero to do with it. He supports Elon doing whatever he wants with his platform. Even if he disagrees with the decision.