What don't you get? It's exactly facebook's goal to get critical mass to get the network peer pressure.
If it's my goal to create a product that forces people via social pressure to do something, it's definitely my fault when it works.
Your response is the same as people saying "don't fly" when they complain about the TSA. 'Someone had an unpleasant experience with the TSA? How is that the TSA's fault? That person didn't have to fly.'
NO. It depends. Let's reduce your argument to the absurd. If I make it a goal of mine that <foo> happens by next week, and I do <bar> in the meantime, and in fact <foo> happens, whether or not <foo> is my fault depends on what <bar> I did. If <bar> = nothing, then obviously <foo> was not my fault.
Facebook has designed a killer product that makes it really easy to use for social interaction. But Facebook is not forcing you to use it, Facebook is not forcing your friends to use it, Facebook is not forcing social peer pressure on you, and if in fact someone's friends are wholesale excluding that person because they're not on Facebook, Facebook is not responsible for the fact that someone has shitty friends that are too lazy to include that person.
If it's my goal to create a product that forces people via social pressure to do something, it's definitely my fault when it works.
Your response is the same as people saying "don't fly" when they complain about the TSA. 'Someone had an unpleasant experience with the TSA? How is that the TSA's fault? That person didn't have to fly.'