A very insightful and well thought out post. If I could upvote it twice I would. I particularly liked the level of enthusiasm and commitment you have for the platform, as this gives me greater confidence in my own decision to commit.
-edit-
Editing to comment on how good the 'Walking Dead' idea is. Communities of interest seem perfect for this platform. They can reward their content producers and be rewarded for their participation as well. A perfect feedback loop.