Tracy, maybe I did misunderstand.
When a teacher reads and responds, this is the best time for them to provide a grade (i.e., a "rating.") I don't understand what coordinators have to do about "allocating grades?" I will provide a graphic showing a student's post, and how I have "graded" it.
So yes, "Jane posts to forum and her grade is automatically updated in the Gradeboook." This is how ratings work in Moodle.
I am also going to provide a screenshot showing how I have defined this feature in the Forum edit area.