A. You are right. Of course you can complain, you can do whatever you want. It is not the complaining that I am talking about, it is the way in which people act when they do. "They can't do this, bla bla bla, omg our privacy, bla bla bla". Instead of going at it like "Hey Facebook, that is bullshit, I won't use your site anymore if you do bla bla bla, privacy issue, bla bla."

Also, it is a bit ignorant and misplaced to suggest that slavery existed because people were just 'taking what they were given' and then link this to something as futile as a website.