I like your proposal of funding and buying some apps to make them opensource, not likely right now, I don't think that HIVE has enough funds now, but is an interesting point. From the diagram you made, you consider appropiate to introduce ads?, and you think that would be advertisers interested?. In Steemit the ads didn't work apparently very well.

Another thing, IMO we could also think in some kind of funding to contract developers if needed. I have seen that PeakD is asking people to work with them, I see in that very positive news.