Sounds like a pretty neat idea. Wonder how many people will start bots voting for posts with you set as the beneficiary(and even more sophisticated bots vote for those with the highest % back to curators) with this though. Interesting stuff to learn. I do think as this grows, voting patters might change to target users of this more.
Yeah, in the beginning probably not many but that's also why we want to add the "hidden" feature so some authors may not even set extra curation rewards.