As someone has mentioned in their comment that we might drive away some whale stake in the form of pay for vote services, I say... So what! And here's why.
Those, so called, services take a huge amount out of the pool without ever creating any value. Unless you labor under the delusion that there is value in meritless content achieving fake standing. Why would we want such investors or such mechanisms? I'm not sure.
There are businesses on steem, such as steemhunt etc, trying to build genuine marketing/advertising use cases for serious investment in steem... Yet the bidbot driven shitshow drives all the potential growth of audience away within weeks of joining. This stifles any chance of further, and larger, positive investment in this space. Why would anyone invest big buying millions of steem to try and incentivise a none existent audience?
There is far too little consideration and concern for the small users on steem and what they represent; audience for any development (new games or dapps) or potential businesses thinking of building on steem. The users, and their UX, are what will make or break long term success and at the moment steem is not a pleasant experience for new users. Anything that systematically destroys UX is counter intuitive and should be weeded out asap. If this proposal could even come close to achieving that, it would be worth it in the long term, however painful it may be in the short term.
There are plenty of people in this comment thread preaching that we need to just ignore all this and focus on SMT and community. I don't agree, as SMTs without a solid coin and Blockchain functioning to limit attacks on the USP of the platform, will simply become another mechanism of abuse by bot owners and vote farmers. It would end up like a never ending spiral of tokens perpetuating centralised agendas. The irony being that many community SMTs would probably be created to try and address the balance but their value will be dragged down by closed communities (circle jerks) building hype and inflated value through carrot/stick mentality.
So yeah, get the ship in order (steem rewards mechanisms) as well as inventing new ways to power said ship. If the holes aren't patched though, the ship will sink regardless of any shiny new outboard motor!