A couple of times on 𝕏, I've gotten 'popular' enough to get a taste, and it is hard to imagine. You go from zero interaction, to wanting some interaction, to a fire-hose (in my case) of hundreds of interactions you can't possibly respond to, or not even sure you're seeing them all. When you get into thousands all the time, I suppose you're just picking a few here and there to read and interact with. I think I'd have a hard time with that.