Ok so maybe I'm alone here, but this doesn't bother me at all. How is this an invasion on anyone's privacy? They are just using the info a user already gave them access to.
Why does it matter if Facebook has information about you you can't see? Is it really surprising that they do? It's not like FB just shows us the DB tables so that we know what info they are storing on us. As programmers we should all understand that there is some data that you keep that doesn't need to be shown to the user but helps make your program run. That's all I see this as.
Why wouldn't you consider it a violation of privacy simply because another person provided information about you? If you had friends and family who intentionally shared any information you provided in private, you would have no problem with that, and think it should be a generally acceptable societal norm?
The idea that any information you share beyond your own mindspace is up for grabs by any method seems bizarre to me.
It is simply too inconvenient to live in a way where you give up zero information about yourself to everyone. It shouldn't be a black or white decision when it comes to sharing any information, but it's to the advantage of companies that make money on other people's information to want people to believe such a severe stance on personal information is a reasonable choice people have to face.
The distinction I make is that it isn't Facebook that is violating your privacy. Facebook. If anyone is violating your privacy it is your friend/family that is giving the information to Facebook, and I think that in providing this information to Facebook they are violating your privacy, but you shouldn't blame Facebook.
My best analogy is the 'guns don't kill people, people kill people' argument. It isn't the gun makers fault if you murder someone, just like it isn't Facebook's fault if someone gives them info about you, you didn't want shared.
Why does it matter if Facebook has information about you you can't see? Is it really surprising that they do? It's not like FB just shows us the DB tables so that we know what info they are storing on us. As programmers we should all understand that there is some data that you keep that doesn't need to be shown to the user but helps make your program run. That's all I see this as.