That could work... not sure how to implement it... but it could definitely work. Providing a higher curation reward may be the start to changing some of the voting behavior, but it would need to be a substantial difference. Also, that means the author will now be getting less rewards, though hopefully from a higher total... something to keep in mind. But yes, the best way to fix things is to incentivize it rather than forbid it... which is exactly what you are proposing. Good thoughts.