I like this. When people don't have to vote, I believe people will end up voting because they just like curating and enjoy the game theory of getting good content noticed and sharing in the rewards, which might make the curation more organic.
We might even have the reward pool influenced by smaller stakeholders more than large ones, if most large ones opt out of curating. And smaller stakeholders have the widest distribution so the reward pool will be driven by more people, more diversity, wider distribution...