Have green up and red down arrow buttons on each comment on the discussion post
Clicking either one will lead to +1 or -1 in the post's score overall, order of posts will change based on score
Estimated effort: Moderate
Dependencies: Low/None
Assignment: Grace
Milestone: Stretch
Acceptance Criteria: A successful user study where the user acts as a student and and downvote/upvote comments to change the order of the posts on the discussion page