I would also like to see a plugin that provides overall, session, and per document word counts and targets.
Most important for me would be within document (note) word count/target. It looks like the Scrivener screenshot above has this feature.
I don’t want my numerous, daily, and messy reference notes to count towards my daily word count. In those reference notes I’ll have a “Summary” heading which is my own words/takeaways, that I then transclude link within a separate aggregating note. I would mostly be tracking that aggregating note’s word count - including the transcluded text.
Come to think of it, if I have multiple aggregate notes at once, in a folder, it would be good to see the word count of this folder only, rather than including reference notes (that are in a different folder).