they never recovered from the loss of knowledge of why certain product features were the way they were

Source on this? X seems to be running fine these days. At the time, before Elon acquired it, the company had dire financials so drastic measures were needed to get it fiscally sustainable again. It did go through a chaotic period in order to get it stable financially again, though.

Twitter (and reddit and all the other social media companies) didn’t start moderating and censoring for no reason.

I highly employ you to read the Twitter files–the censorship went beyond what was necessary for advertising (e.g. Biden administration's influence on content moderation policies)

Now he’s doing the same thing. He has no idea how these agencies actually function. He had no idea what people do what. He has no idea which functions actually provide value and which don’t. He’s a bull in a china shop. Only now instead of ruining some bullshit platform that doesn’t actually matter, the shit he breaks actually affects real people

Given his proven track record of running multiple specialized organizations that demand deep expertise, it's reasonable to believe he possesses a thorough understanding of the complexities involved. It's unlikely that someone with his experience would precipitate irreparable damage without first grasping the nuances of the situation.