I wonder how many people who have "deleted the app" do what my SO does and keep using it daily via their phone's web browser whilst still telling people "Yeah I've totally deleted Facebook from my phone".
I dialed back Facebook because it ate time better spent doing other things, and I like myself better when I'm not yelling at people who are wrong on the Internet so much.
At least thats how it was 1,5yrs ago or so, haven't tried it since then again.