I've long wondered why the badge page for things like Copy Editor don't show "X edits done out of 500". Turns out we had a reason, though I strongly disagree with it. Note many popular metagaming systems such as Steam and iOS Game Center now offer the ability to track progress.
However, we've recently started showing badge progress...in a fairly unintuitive place:
After unlocking Strunk and White you get:
I'm sure this was in part implemented to promote the use of the Review tab, but are we ready to just plain show progress toward badges on the badge pages, where it is most discoverable and logical? I'd note that it's possible to find a user's progress via the Data Explorer in an exceedingly obtuse manner, and a number of the pre-baked queries are regarding badge progress.
/review
and the progress reports were implemented by Waffles and is totally kickass, unlike public flag-weight.