Facebook is not made for smart people. It's not made for the readers of Hacker News, this guy's blog, or even the throngs on Reddit. It's made for everyone else. I work in a place with some people who will work/have worked minimum wage jobs their whole life (not that there's anything wrong with that). But these same people are on the internet all the time, and you know what they do? Check facebook. Facebook chat. Look through facebook pictures. Maybe browse craigslist for a few minutes looking for a used car or a new job. But 95% of the time? Facebook. I'm not saying this type of person represents the majority of facebook users, but it is this type of internet "familiarity", for lack of a better word, that makes up the majority of facebook users, and the world's population.
Gap Inc. is the parent company for Gap, Banana Republic, Old Navy, and a few other brands. Its website is geared toward corporate information, rather than the brands Gap Inc. owns, which have their own retail sites.