What is the problem? 50 millions people voluntarily published information about them on the Internet and now they have complaints about someone using it? Don't

What is the problem? 50 millions people voluntarily published information about them on the Internet and now they have complaints about someone using it? Don't use Facebook them. And Facebook is not that bad. You can use Facebook with a fake name and without a phone number. But for example in Russia social network sites require a phone number to register. They have much more to leak.