Why does any part of this need to happen in public? Not in a text group? Random discord server? Is it just some sort of underlying exhibition drive that Myspace originally tapped into? To me, my friends are the 15-20 people I've grown to know and like. From reading what you said here, it seems as though to you the word friends captures your entire extended network, with friends of friends, old coworkers, etc. If your question is how do you show off to these people, if you're optimizing for the number of 'interactable interactions' or something, we've left friendship far behind and turned this into a 'numbers go up' game. I'm not less friendly with my best friend because I didn't see her latest comment on some random meme an acquaintance from school 10 years ago posted.
You propose replacing public commons with something different, immediately showing you have gained no sense of what Metcalf's Law implies or what value social networks enable.
None of this sounds in any way realistic or like a viable replacement for what we are right now stuck with. Giving people broadcast, in public capabilities is different, it's easier. I wouldn't necessarily say it's better, but the ease & ambience of broadcast is a huge advantage, and leads to far more interesting mixing. Nothing you've proposed sounds in any way similar. Your words continue to amount to: withdraw from the public. I for one do not see that as a likely or desireable counter-conclusion for myself, for my friends and family, or for society.
