Oh god. I am not this brave. I still have saved papers from HIGH SCHOOL ENGLISH (these are sort of hilariously angsty. I remember one teacher telling me she'd fallen asleep reading it, so somewhere there's a hard copy covered in coffee--probably in my parents' closet. Now this "grading" process is all clear to me and I'm much less offended). As for professorial comments...although I my appreciation of the time and effort that goes into them has grown (particularly since I've started teaching), the pain even the obviously well-meant ones causes me has also grown. I still have a final paper only tangentially related to my sub-field STILL in its envelope from last quarter that I can't stand to open.
I sometimes prefer the Schroedinger's Cat approach: as long as I don't open it, the comments are simultaneously both good and bad. The minute I look at the page, the possibilities will collapse (in my brain, they inevitably collapse into being laughed out of academia, which is ridic., since all my profs are super friendly).
I come from a family of pack rats: Somewhere (also probably in a closet at my parents' house) is a little round book I "co-wrote" and "co-illustrated" in kindergarden or early elementary school with a friend about some woman who delivered pizza with her feet (wtf?). E, wherever you are, you are still amazing.