If by scale you mean trying to police a hord of reward pool leeches the answer is no. If I remember correctly Dan Larimer designed the system as a way to distribute the coin and the whole idea was that the users would moderate the allocation of the rewards (the famous "crab bucket" example described in the original steem white paper). Under this conception even "bad actors" do useful work by selling on the open market (and thus helping in the coin distribution). In the real world the majority of ordinary users don't try to moderate the reward allocation.
So no, I will not try to change your mind.
btw, I think the new system dan came up with on voice is just as flawed, maybe even more.