I had a Facebook account before with an email address and a phone number, but deleted it. After months, I created a new one with a new email address, and without using any phone number. I was surprised to see FB suggesting friends I knew in real life in the past, but have never been contacted using my new email address (not even using my old one). Also, many friends were suggested from my email without my consent to access my contacts (as far as I am aware). And it also suggested people who work in companies from which I received job-related emails!! I felt very upset and violated. I didn't sign up for this creepy stuff. It's OK to suggest friends of friends, but these suggestions were creepy. I feel Facebook has no respect to users' privacy at all. I have never had any issues with Twitter. I am sure they too use our data, but at least they don't use it in an obvious and outrageous way. Some people will comment there is no privacy in the digital age. I don't agree. There should be, and something must be done to control these big companies on how they use our data.