First, Steve Sailer put this graph on Twitter:
UN forecasts staggering population explosion in African countries.
— Steve Sailer (@Steve_Sailer) June 25, 2017
Subsequently, Sailer was asked if “Niger” was meant to be an abbreviation of “Nigeria”; no, he said, Niger is a country unto itself, and Nigeria wasn’t on the graph because its population in 2100 is projected to be around 800 million, which wouldn’t fit the scale. This explanation ended up on Facebook, and then was quickly stricken:
[D]on’t discuss UN forecasts of Niger’s population growth on Facebook. That violates community standards.
Facebook may not believe that anybody could possibly be interested in Niger, but, as Trotsky would say, the upcoming 192,000,000 Nigeriens are, like war, interested in you.
He gives too much credit to Facebook, I think; the most likely explanation is that while “Nigeria” passes muster with the site’s dictionary, the algorithm read “Niger” as something it isn’t. (In fact, as a result of the country’s history as a former French colony, its name is pronounced à la français: “nee-ZHAIR.”)