Yes I agree that delegating SP to good curation groups is the most constructive way to evolve the steem platform.
Steemit is only an app build on top of steem and ultimately it might make more sense to see more specialised steem apps emerging in the future.
For example, is Steemit the best platform for utopian-io or should utopian-io have its own app for promoting open source software?
Another thing maybe not to overlook is the possibility of corporate sponsoring. Is this a taboo subject or is there room on the steem platform for companies to sponsor open content?