Aside from releasing source the alternative would be to license SO. I would push for a purchase in my org.

It is a great way to organically build a knowledge base over time, and I think that piece is missing in a lot of places - especially stovepipe orgs. Given the competitive nature of the badge system it would encourage average employees to contribute their knowledge for recognition - which would help break down information barriers. It would also allow you to identify who in the organization knows about what, and which people are holding the place together.

As a programmer if I could go to a LAN instance of SO about... say accounting, ask an accounting question, and get answers from people in 4 divisions, that would be awesome.