Wait, I don't get it. 
Content = Interoperable
Creator and Audience members can choose from a free market of apps tat access/ interact with that content.
Or they can build/customize their own apps or tools for whatever aspect they need to. 
Anyone can take ownership as deep down the stack as they want. 

My main point is that, for both creator and audience, the best starting point for this bright future is a Chat app. 
A chat app where every group is not just a chat but also an interoperable forum, an article publication house, a media server, ....