And yet, dropping below the minimum ilvl intentionally for any reason can be considered to be in breach of http://support.na.square-enix.com/ru...2&tag=users_en

2.1 Cheating and Botting. You may not create or use any unauthorized cheats, bots, automation software, hacks, mods or any other unauthorized software or hardware designed to modify the Game and gameplay. In addition, you may not take advantage of game system bugs and exploits during gameplay.
So the better question is would the tank rather get banned for being reported for cheating, or would the group go without the tank and have a bad run?

It's a bad situation either way, but I'd rather have failed instances than have salty healers start getting tanks banned for exploiting.