Fourfold: advertising impressions. Presumably that's why the article went up tonight rather than spending time doing more research into availability of parts and so on which would be required if people were truly interested in a device they can repair. :)
Except for the fact that they force us college students at Cal Poly to do their tech write-ups for our Technical Writing class. iFixit is filled with a bunch of losers. Sorry for being blunt, but half their "how to"s are written by college students forced to make them for our grade.