Addiction versus having to put up with people defending their addiction as a "social habit".
It's like smoking in the 80s, with the ostracism turned up to 11.
The good news being, what seemed impossible then, we slowly seem to be winning the tide against smoking. Speaking as a (currently..) ex-smoker. If you remember we used to be allowed to smoke in restaurants (I can hardly believe it myself, sometimes), how the consensus felt back then, there is hope :)
Facebook vs having acquaintances?