I think doing this creates a larger gap between those students that are A+ students, and have the extra time to do this work, and those that are barely making in through the regular assignments. Imagine how that feels for the student struggling, when the A+ overachiever student continues to do more work, and get more and more recognition for doing so. I just can't do that with my students, they, the C students, doubt their ability as a student already, rubbing better students work in their face would be counterproductive for me. This reminds me of the separation between the “haves” and the “have-nots” in society - the gap seeming to always widen.