First and foremost I want to say that I'm sorry for deceiving you, but there isn't a place for me to put something like this.

FATEs are broken. They give way too much XP and the seals give gear that is WAY too good. People hyper level through fate grinds and use seals to get op Grand Company Gear. Not only does this mean that they out level too quickly, but it also means that the economy for the game plummets into nothingness because no one is buying gear from armors or black smiths.

No one is buying gear, gear can't be sold at a price that increases the sellers revenue even the slightest (In fact it cost more to make the items than you get from selling it).

Solution:

1. Reduct the amount of seals and XP gained through fates, and increase the Gil gained.
2. Increase HQ item stats to surpass the stats gained from GC gear.