. . that the number of points be proportional to the number of comments left.
As it is now, it is all or nothing at five comments whether the piece is 50 words or 5000. The proportionality can remain, say, at 5 comments per 2000 words (typical) but could be 1 comment per 400 words for 1/5 the points.
I think there is somewhat of an external and unnecessary force to keep a chapter at around 2000 words just because more reviewers will review more of it to get to those five comments by the end. A longer chapter gets much of it at the end ignored, and a very short chapter will not get reviewed at all (what?! five comments for 400 words to get a measly half point?!)
From one who typically leaves comments numbered well over the minimum and often into the teens and beyond, I fail to see how basing the points on the number of comments would increase the number of reviewers getting to the end of a story. If the reviewer is simply going for points, then they would go with the longer chapter since they would automatically get more points regardless of the number of comments once reaching the minimum. And any reviewer simply going for points with more or less a drive-by isn't going to spend much time on any portion of the story - whether it be the beginning, middle, or end - regardless of the length of the story.
A decent reviewer (the only ones that count) looking for more points can review a longer work and leave the same number of comments they would on a shorter piece and receive more points in the process which invalidates the assumption they don't/won't review longer works because of the point structure. I speak from experience; I don't care or look to see how long a story is when deciding to review and I most always leave a great number of comments well over the minimum. I also read the entire story before starting my review and then read again as I'm doing it regardless of story length. Take care. Vern
PS: Edited for clarification of number comments.