I do not know whether this point is already been taken into consideration and rejected. If yes, I myself invite the agents.
Otherwise I think this is a good option to give a chance to rate a post out of 10.The admins may make an algorithm to convert the grades into appropriate rank out of 100. And let both these ratings and rank together be shown for every indivine entry. Lets see it as "Bloggers who rated it 10 out of 10, 9 out of 10, 8 out of 10 etc"..... for every post added to indivine.
There could be fun if we introduce this system. Because if some one posts an entry and gets a rating two or three out of ten, by a few fellow bloggers, he himself may say "Please do not promote my post by rating it".
And if it so happens, we can inturn introduce another feature "do you want others to promote this post"? while adding a post to indivine.