It definitely sounds odd to my younger colleagues when I explain what it was like when people smoked in pubs by default. There may be a difference here in that

It definitely sounds odd to my younger colleagues when I explain what it was like when people smoked in pubs by default. There may be a difference here in that lots of people disliked smoking/smokers/their clothes smelling after going to a pub, perhaps more than there are who dislike the concept of facebook likes manipulating their behaviour more than they like the rewards that likes bring them.