>>Serious question, why do unhappy customers keep buying what bad companies sell?

Many good convos have happened on this -- Facebook is de facto required for participating in some levels of society. I've heard of people being required to use Facebook to get information as vital as announcements about school for their kids. For those of us with poorly understood chronic illnesses, Facebook is the only place we can find people who share our condition and can trade information with. Many community events are only announced through Facebook events. Essentially, it's infiltrated so many aspects of life that it's become very difficult for many people to fully walk away from.