This is something I wrote about 1.5 years ago. I think it still has value; for context I was working through several problems relating with communication.
It should give you an idea of my mindset with regard to the problems we have with collaboration (and I'm not just talking about the technical limitations of the software).
http://en.wikipedia.org/wiki/User:Jorm_(WMF)/Collaborative_Systems
--- Brandon Harris, Senior Designer, Wikimedia Foundation
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