Every time you post to Twitter or Facebook, these sites are collecting data about you. At this point you ought to expect that by participating in social media sites, you’re giving up some of your privacy. It’s just the name of the game.
Some see big data from social media sites as a god send for researchers - a perfect way to study social habits with huge numbers of people. But what happens when that data with your personal details still attached is published for a study, for the world to see?