The developers should just have a report card appear during the last dungeon cinematic where we do the fanfare.

The report card should say how long it took the clear the dungeon, what items / gil gained, and list facts about individual characters such as their DPS, threat generation, healing, highest crit damage / heal, etc etc

Then parsers won't be needed as much and people can instead cite the report card when pointing out someone's flaws, instead of their third party parser.