I think the design of the site is crappy as hell, as in: the UI sucks ass and didn't get better throughout the years. And the more important data-mining became, the more flaws appeared. The site is ridden with malicious scripts that abuse your system or smartphone and I think that all in all the whole concept of it is intrusive, abusive and purposely made to either influence society in a propaganda way and/or to divide people. It's the sewer of the internet.