I initially had that reaction but then remembered the initiative Facebook has to provide "internet" to impoverished places (basically just a portal to Facebook)

I initially had that reaction but then remembered the initiative Facebook has to provide "internet" to impoverished places (basically just a portal to Facebook). And it's not just other countries—most of my non-technical friends do not browse news aggregators where they are exposed to multiple new sources (it's amazing how many blogs and smaller sites I've found because of HN and reddit).