That's sort of what I'm getting at. Why do they need so many resources? I mean, looking at the software and its requirements, I don't see the necessity.
I'm not sure what facebook has done, or whether this should really be what the focus on, to be honest.
I remember a thread here in HN asking how much time would you need to build a site like Hacker News. Lots of people said something like "a week, top". pg said something like "one year".