For instance, if I consider a random grandmother who logs into Fb to see her photos of grandkids and catch up on other retirees, she's probably not going to write an blog post saying Facebook is a cancer. She feels Facebook enhances her life. If you lecture her on swapping out Facebook time with meeting people in real life, she'll say her grandchildren are in another city and you're an insensitive idiot.
I don't have a Facebook account nor am I a Facebook sociology expert but I wonder if this forum (filter bubble) gives a massively warped picture of how Facebook adds value to peoples lives. (Especially the people who are not programmers or techies.)