I don't know why people install the Facebook app on their phone. You can't view stuff offline, meaning you might as well just go to m.facebook.com, the browsing experience is pretty similar AND you don't need to install that stupid messenger app AND they can't access stuff on your phone. They shouldn't, but the pessimist in me says they will.
Same with LinkedIn, who installs this crap? And why?
Of course, there's plenty of other crap on my phone that I've installed and is exposing me...