Your proposal is a refreshing call for change in hopes of salvaging the first mover advantage that Steemit has as a blockchain-based social and blogging platform. One thing is for certain: the current rewards distribution model is unsustainable and stands as a firm obstacle in the way of further adoption of the Steem blockchain. I have referenced this quote from the Steem White Paper repeatedly because it is very relevant to this discussion and the present situation on the site: "Any imbalance in the give and take within a community is unsustainable. Eventually the givers grow tired of supporting the takers and disengage from the community."