When we log in to social platforms such as Facebook and Twitter, recommendations will come out to push us to relevant acquaintances, celebrities, KOLs, topics of interest, mobile phone contacts syncs, etc., to facilitate personalized recommendations. Our activities on the platform form a social graph and become profit-generating data assets that are owned by the social giants. The fact is, being evolved from the content-centric Web 1, these Web 2 applications are turning the read-only web int...