Currently grades for quizzes are published already before all questions have been marked. This may be misleading, in particular in questions with manually graded questions (essay questions). I am wondering whether perhaps an entry in quiz_grades should be created only once a quiz is completely graded.

A bit of thought has to go into the question of what to do with quizzes that allow multiple attempts. Should grades only be published after the closing date or once all attempts have been exhausted?