This is an interesting idea which I think would quickly be adopted by low(er) quality blog network owners, those who mostly hire via Craigslist in third world/development nations and tend to pay less than USD 1/post.
Unless this would become a capped max. earning/timespan in which every contributor who hits the cap would mostly continue just for sh*t and giggles, and because the community is awesome, this would absolutely serve the speed posters. Although, of course, the beauty with algos is that anything can be capped.
Did you just touch upon the communist blockchain model, @kevinwong?