So, that basically renders the algorithm that will calculate VP deployed per post utterly incalculable, given that you vote on more than one post and others vote on those posts. The change in payout value will change on each post and change the calculation of how much VP to assign to that post. It will do this simultaneously on all the posts you vote. Each assignment of VP will then change how much VP you have available for each vote, and then have to change again on all posts every time someone else votes.
Not even the best quantum computer in the world can do this. It's basically an insoluble mathematical problem.
RE: Proposal: Change Up and Downvotes to bids