I have fb, but the day I got rid of the app on my phone was life-changing - I still have the fb messenger app on my phone for instant friend communications (with the notifications turned off so that I have to manually look to see if I have messages, rather than the stress-inducing peal of demand that one of slight ocd tendencies feels compelled to read & reply to immediately)
Since not having the constant ping & flow of my friends & acquaintances lives, when I go on fb on my laptop, sometimes not for several days at a time, I find it all overwhelming after a few minutes & beat a hasty retreat
I still keep in touch with all the people who matter to me without the aid of fb (though some assume that I'm aware of some aspect of their life they've posted on fb, which I'm actually obliviously unaware of)
I've actually read books since I binned it off my phone, which I hadn't thought I had the time for, for years
As to lack of action on this sub forum?
My guess is, just like anything in life, it ebbs and flows (and some of us are a bit old and past it!)