The PoB concept is vastly flawed, no one will ever have enough resources to police the blockchain if mass adoption comes to happen. It's just so easy to abuse the system, I can't imagine how a sustainable economy can be built on a system with such flaws.
What do you think about having a PoW or PoS for the native coin instead? and keeping the PoB concept for SMTs?
That's the idea of getting rid of the steem reward pool mentioned in the post. I think i like it, but opinions are split as some comments here show.