I see the problems, but I think that development of the native chain and posting are really two very different things and I dont know what the advantage to throw them into one box would be.
Because in my view they really are the same thing. Stakeholders agree to distribute some of their money to increase the value of the system. That can include many things, not only attracting users or development but also marketing, brand development, etc. The common denominator being that if it adds value that offsets the dilution of the stake it is a worthwhile expenditure and if not then it isn't.
Good points in the rest of your comment.
I do agree. I think the problem is that by voting for posts, you vote when the value is already there. But there should be a way to vote for value that is not yet there and somebody is promising to create. This however becomes very difficult and requires some smart contract plus decentralised oracles that state if the objective was met to unlock funds.
This is sadly well beyond what steem can do right now...
You're right when it comes to a fully decentralized smart contract type solution. It is possible to pay the funds out to a trusted agent though, who will then release them upon completion or whatever sort of criteria are used.
So I see that point. However currently the rewards are limited to small amounts per day. What if we want to pay for larger projects this this way?