The question is whether there needs to be any "reward" at all (assuming that you don't require increasing costs of hardware and electricity in order to run a full node).
As I see it, unless there is a trust based model like PoS, rational participants do not act in the benefit of the chain as a whole because the timely confirmation incentive is ill defined in a system with no rewards.
What I believe monsterer is describing is that no miner has incentive to mine as quickly as possible onto the longest chain if they are not risking income by not doing so.
I am of course aware of this.
I will not comment about my design to which monsterer is referring to in the OP, until he properly credits me for being the one who proposed such a design.
I will not reward plagiarists who don't cite the prior art. Theft is not a paradigm for success.