Facebook just doesn't have many engineers. "Over 2000 employees" (wikipedia says) just isn't that many. Compared that to Google (~20,000 to 30,000?), Microsoft (~90,000), or the IRS - over 100,000, or the Pentagon - 757,000.
Facebook has an order of magnitude less than just about any other similarly sized organization. It's bigger than Wikipedia, though.
Facebook has an order of magnitude less than just about any other similarly sized organization. It's bigger than Wikipedia, though.