Author here. Your guess is as good as mine, but probably for the reasons other people have mentioned here. It would be making the lie in public, attached to his own name. The fake profiles aren't attached to anyone real.
[1] https://arr.am
>I took a photo that may now be one of the most reproduced images in history.
>I took a photo that may technically be one of the most reproduced images in history.
>In my nine years at ZeroCater I probably interviewed around three thousand people.
That would be roughly 1.30 people per working day or 6-7 people per week.