in that case, wouldn't it be better to focus on adding e2e to diaspora? or is there an architectural limitation with it? that seems a lot of redundant work at the moment.
Without knowing anything about the technical difficulties, I would argue that Diaspora as a brand is already dead -- associating with it is basically a guarantee of no users.
That is so untrue. Diaspora is doing better than ever, after the unrealistic burden of killing Facebook was gotten out of the way. Now it is "just" a well functioning network with tens of thousands of active users and an active development team.