It would be very convenient to Mark Zuckerberg (of Facebook fame) if every distinct human being on the planet had exactly one Facebook account that was tied to their real name. Dream on, Mark.
I have previously expressed my distaste for Zuckerberg's expressed desire to reduce all internet users to one-dimensional cutouts to be fed to his marketing machine.
Here is more support for the belief that Zuckerberg's dystopian dreams are doomed to failure. It boils down to Zuckerberg's "bubble boy" business model versus human DNA. Mark Zuckerberg will be humbled. His attempt to define the internet in terms of maximizing his own profitability cannot succeed.
My advice to Zuckerberg: back off and start serving your customers.