You know, I could see ol' Zuck sitting there in his Herman-Miller Aeron chair looking at the internal numbers of FB 'users' and seeing the number be ~15 billion accounts that their in-house 'bot filters still think are 'real' people. He says to himself: 'You know, maybe I could tell the UN that there really are 15 billion people out there and they are all on FB. Ha, I mean, a lot of people really might believe me.' He looks out the window, sighs, and puts out an email via Thunderbird to the marketing team leads that says to keep the number at 2 billion.