I haven't read the comments yet, but I do find the idea intriguing. One issue with the bid process you describe in part, is that say you think a post has a higher/lower value than you have the SP to deliver. What does your bid mean in that context? What weight is your bid given? You are able to cast 10 100VP votes per day. Are your bids 100% votes, or 25% votes, such as I have long delivered, or .001% votes as some deliver? I don't think this is an insoluble question, just one that requires greater thought before it is more than a idea, and capable of being an actual proposal.

Thanks!