At several sites where I play, all of a player's games can be downloaded as a single file. I'd certainly like to have that feature here for my games, and for those of my opponents.
My website offers the following comparisons (RHP is column 2):
Database Functions
PGN own !! !? ! !? ! ! !? !? ??
PGN others !! ? !? !? ! ! !? ??
http://www.angelfire.com/poetry/wulebgr/comp.htm