It's not me rating the books, Len,
but I'm always curious: how would knowing who was doing it affect the rest of your life? Seriously. Lots of people seem to spend an inordinate amount of time searching for answers to fairly meaningless trivia (just follow any of the threads on the Timely/Atlas/Marvel board). "Knowing" can't really have that great an impact on your life, can it? Maybe someone doesn't like partial scans? Really, their rating is NOT a reflection on you or your work unless you allow it to be. My advise is to ignore the ratings and continue with your wonderful scanning efforts. Remember, "consider the source." And if it's anonymous, "ignore the feedback."
FWIW.
Peace, Jim (|:{>