Originally Posted by
SamSmoot
How about: After you clear an instance, you receive a report that says:
Your performance compared to an average of all other players in this expansion of the same level, job, and item level is DPS: 65%, Heals: 90%, ??: ??%
Of course, SE, or your game client would have to record everyone's performance to calculate the overall average, and yours for comparison. There would be no need to store everyone's individual data forever.
At least, this would let players know how they're doing, without the opportunity use it against others.