Facebook (and Twitter) are just a pain, really want to delete my accounts, however; I tend to use Facebook for messaging friends rather than texts and it IS good for arranging group meetings and events. So until something else is mainstream that is good for events, then Facebook works.
I do also like the car crash viewing and having something to moan about with bad grammar, stupid shared things and ridiculous unfounded statements, complete with a picture to 'prove it'.
Generally I used LinkedIn a lot for work as that's a social media platform that is actually helpful. But I've noticed this ridiculous behaviour creeping on there too so I've started removing connections who do this.