I think the title speaks for itself. It would help knowing 'what else needs to be done' in order to earn a certain badge level. For example, Strunk & White badge. It says "Edited 100 entries". It would be good to have a statistic off to the right when you click the Badges button at the top, that shows (50/100) Entries, for example, so you know that you have 50 left to earn this badge.
... Or is S&W a bad example? Enthusiast badge would be nice to show the statistic.
Do this encourage badge hunting? I think for most of the badges they are obtainable by 'one-time good deeds' that are difficult to do and thus would have no statistic tied to them (such as Cleanup, Taxonomist, etc)