You might get it back if the post is worthy of support above what is injected into it, but only 50% will come back to you for certain.
If not missing an obvious detractor, I think it is a terrific idea that would allow people to directly improve curator bottom-lines, while serving as a method of promotion 'and' as a method of providing MORE! to those who support a specific post.
Should be implemented immediately! :)
What would happen to the other 50%?