People who use Twitter feel quite assured, I think, that there is usually another person behind the pfp; but Musk and now Texas are kinda wanting to suggest that that sense is often an illusion.
Honestly, if anything in my life is some kind of Truman show, its probably Twitter, so I definitely get how this angle can work for them. The kind of behavior the platform produces is sometimes more easily explained that way I think.
Then the next thought is just: why not make a Twitter clone that is purposefully this way? Every user logs into their own twitter where there are only a million bots with them, interacting with the user and themselves. It could be more finely tuned to the user's neuroses, so the ads can sell more. The overhead for content policing would shrink to zero, because everyone is just in their own sandbox anyway. The ephemeral interactions with random people would probably stay the same honestly, depending, I guess, on whether the real user knows the full situation or not, but I suspect even then it wouldn't matter. You can keep the news stories the same.
I am mostly joking but I do think people would use this. You could also pay more to have the experience of being a big twitter account/influencer. Even if you know they are bots, if the UX was strong enough it wouldnt matter, you would still get the dopamine hit for seeing your hot take get a million likes.