I just passed 200 RSS feeds in NetNewsWire! I have a sense that was around my count back at the peak of RSS before social media exploded and reconfigured how we used the Internet.
Even before enshittification set in on the corporate social media sites, I liked the “curated by friends” aspect of it. And a lot of things I stumbled onto via Twitter (I joined FB much later) ended up getting the site’s RSS feed added to NNW.
I keep FB because I manage the page at work, but mostly do all of that through a third-party scheduling tool. I deleted my Twitter a couple of months ago… I honestly can’t remember, and don’t miss it.