As someone who is on just about every social media and aggregator site there is, I find myself gravitating toward sites that allow for as much interaction (or little) as I would like. My friends and I communicate through Facebook messenger, which obviously requires FB, but I use a browser/app called Ferdium, which lets me open messenger directly without the annoyance of opening the Facebook app itself. But each site has its own specialization that it does rather well. I mean, look at Discord's little communities, which are really designed to support the gaming community, and say, Instagram, which does photos very well. I get that companies would like the One Site to Rule Them All, but I look at it like I would at McDonald's and Dunkin' Donuts. McDonald's caters to one of my tastes, and Dunks does the other. Like your example with AIM I've largely given up with trying to get my friends to sign up for services. I'm older, and remember AOL when it was just starting out and even remember Compuserve when it was little more than a list server.