I founded the federated wiki with the intention of generalizing the wiki style of sharing to communities that maybe don't trust each other enough to share write access to single pages.
It seems to have turned out well but we have yet to discover how the decisions we made actually influence real communities of any significant size.
For this reason I am happy to explore community structures that interest others. I am willing to create additional plugins for the cause and sometimes find need to improve the implementation core.
I will write Answers to Questions