I'd probably never get rid of it just because it serves a purpose of long-distance communication. My son was born a few weeks ago and I was easily able to update my cousins/aunts/uncles spread across the country the details of it.
I don't let it aggravate me. Someone's consistently irritating? Hidden from newsfeed. I only post something (usually related to my kids) once or twice a month.
I'll never, ever understand people that get on there and just argue (sometimes with complete strangers) about shit endlessly. That's a huge mystery to me.