So you don't think it is a big deal because you believe your private data is not important. The issue is that perhaps your data is not as important right now,

So you don't think it is a big deal because you believe your private data is not important. The issue is that perhaps your data is not as important right now, but it is possible that one day you might do something that might upset someone in the power and any information about you might be used against you (and that would be years and years of your past since that data wouldn't be gone). Just look at Snowden, how they tried to use every petty detail about him. He was careful though and did not leave much, but there were strong forces trying to discredit him. Maybe you think you would never did anything like what Snowden did, but what's considered bad depends on what current administration thinks. With our current president it feels like insulting him on twitter might be good enough cause. Second issue is that Big Data done on you, it can infer a lot about you based on the data that you provided, often it can know more about you than yourself. That data then can be used against you, here's one example of a company that does this and in fact not only tries to learn about people but actually influence them[1]. It's suspected that they are behind Bexit and Trump victory. [1] https://motherboard.vice.com/en_us/article/mg9vvn/how-our-likes-helped-trump-win https://motherboard.vice.com/en_us/article/mg9vvn/how-our-li...