In the past I did harbor some measure of concern about my social media privacy, but eventually I came to the realization that there was no longer a reason for my concern–Big Brother has (or will have) all of my posted information anyway . .. so there is no need to worry. I simply strive to be a little more cautious about what I post to social media or what I say in email to friends.
I do, however, constantly preach to my teenage daughter about the need for caution when using social media, even though she has yet to give me a single reason to question her judgment on such matters. When I see some of the posts she shows me from her classmates, I cringe about the many interviews and opportunities that will be denied them by prospective employers or boards reviewing applications to professional schools.
The linked article above provides a very good description of the current state of privacy in our addicted-to-wifi society and our “digital thumbprint.”