Realistically there's no benefit to this. Why should the government(s) have to be on social media at all? They're just looking for a broadcast channel, not crow

Realistically there's no benefit to this. Why should the government(s) have to be on social media at all? They're just looking for a broadcast channel, not crowd feedback or interaction, especially not ownership of that public reaction/interaction. Twitter started as basically just exactly that. (Formerly) a democratized way for anyone to broadcast anything to the world for others to find. Measuring reach of the message became useful when you're trying to become a growing voice, but governments aren't. Replies and replies to replies are primarily people broadcasting their own separate messages, just with context for the topic. The back and forth becomes a public discussion (as in the "public at large"). But governments don't care about that, they're just broadcasting their messages somewhere people can find them. It's purely a convenience to the public if they post them in a forum that facilitates easy authoritative reference, but that could just as easily be blog posts on their own website.