I think this would be a terrible idea. If these changes go through I think there is even less incentive to hold steem power. No one wants to come on here and spend hours "curating" the 10 "best posts" each day, literally no one. Get SMTS and communities done and let them decide their own economic systems.
Oh and a free downvote pool will get abused 100% guaranteed in that it will create downvote wars and people downvotinng people simple because they don't like them, irregardless of content. We have enough trouble keeping people here, if you make this place more toxic, you will have an even tougher time keeping them.