I agree with the consensus that stealing should be more incorporated into Thief. I've always found it odd that it doesn't have a general use and would welcome more utility to Thief. I always thought Thief should actually be stealing regularly, sneaky and cunning in FFXI.

Larceny adjustment: If Blue Mage can have a full dispel spell they have access to every 5 minutes. I don't see why Larceny, a 1 hour ability shouldn't just steal all buffs a mob has. It's not that overpowered. It already steals 1 hour abilities and even with monster buff duration lasting longer, most current endgame is timed battlefields/dungeons and Bards/Corsairs can buff and drop party so I don't see the problem with a full Aura Steal/Dispel as a 1 hour.

Steal adjustment: More likely to steal temp items in battlefields.

Aura Steal adjustment: They did a good job removing the shared timer with Steal and Despoil, they need to go one further and just separate Aura Steal into it's own JA on a 1-3 minute timer. Dark Knight can fire it off in less an 1 minute in just Haste gear. I don't see it being overpowered here. Merits beyond the first could still be the rate of stealing the buff versus dispelling it.

Hide adjustment: Change the animation to Job Emote: Thief which looks cooler in my opinion. Give it the same treatment as Camouflage, where you can melee with a chance of remaining invisible for reduced enmity.

Borrowed Time (Concept Job Ability): Increases target's delay and gives the THF JA Haste.

Update Thief's Tools: Using Thief's Tools on more modern content chests like Ra'Kaznar Skirmish, reducing the chance it is a mimic.