This thread reminds me of the question I posed a while back in To score or not to score - Authoring / General Design Discussions - The Interactive Fiction Community Forum (intfiction.org). I have to agree with @zarf that scoring should somehow make sense to the protagonist.
Since in my current game the player has to pursue a number of goals which I do not want to sum up into a single numeric score, I have implemented a journaling system, then I can keep track of progress for each goal: Keeping track of quest progress using a journal