As a grader, I should be able to see the rubric style of the forum grading page as the assignment grading page (With the expand option). It is so hard to go with the bullet point style in the forum grading page. 

The expand button in the submission page's rubric is very clear to the grader when it has long lines of rubric description

Assignment Grading rubric

Expand button

Expanded section

Forum Grading Rubric