The reality is that both Facebook and Twitter are a pointless waste of time, but unfortunately a hell of a lot of people are pointlessly wasting their time these days. Also an unfortunate reality is the fact that people use these pointless things to measure the popularity of a product, just like many people think that if you see a product advertised on TV it must be good. It's not true by any means, but there are people out there who will think "wow, this got xxx number of Likes or xxx number of tweets so it must be good".