How about: A built-in private parser whose results can be viewed after you leave the instance. The game could maintain an average performance database by job and item level, which your results would be compared against, not the other players.


So, after a run, I'd get a pop-up to view my results, and my DPS / HPS / tankiness(?) would be shown relative to the overall average. After viewing, (or not), my personal data would be discarded.