The elevator pitch for tech-minded people is that wikis are to SVN as federated wikis are to git. Instead of a shared wiki that people modify, each user has their own wiki which consists of both pages they've made or forked, so information propagates back and forth between users. It's a really compelling idea and I hope they can make it work.
So, the bar for contributing to the wiki has been raised from "has access to a computer" to "has access, knowledge, and resources to run a wiki server"? I hope one or more WaaS (wiki as a service) providers will emerge where a user account == a fed wiki node.
That's already how it works. You could run your own node and share information back and forth with other nodes, or you could use an account on an existing node. This is clearly the case: if you go to the C2 Federated Wiki, you'll note the Login button.
