A Parser provided by SE would be amazing. There are many people who love to see statistics of combat log, Drop rate, and experience chart. This would be very useful in fine tuning items and strategy. Also especially for a experience point or Ifrit battle.

Combat
Example, over the course of 10 minutes player 1 Archer has X% Player 2 lancer has y% DPS, and Player 3 Pugilist is z%
Example
Player 4 Conjurer is healing x% and player 5 conjurer has healed y% over 10 minutes.
Example. Player 1 Archer best critical is x.

A drop rate indicator would also be useful when farming coffer keys or just for crafting items.
Example you killed fat dodo 7x and obtained 7 skins. average %100

When mining a log keeper of mined ore such as how much iron am I getting vs electrum ore?

Which party is better experience in a hour camp A or camp B? (Perhaps more data needed such as party setup)

Some players already have random parsers for 14 but I'm only going to do something SE supports