Creative use of mechanic, or exploit

[Vyndree]

lets face it, using a level 70 to run a bunch of toons through any instance is an exploit that they don't currently ban anyone for.

Zolo wasn't either since it was a confirmed by a blue. It wasn't supported, but it wasn't an exploit due to the fact that Blizzard themselves said "we're not going to ban anyone over this, but don't expect us to help you".

Now that Zolo is nerfed, it's no longer "safe" to assume that finding a way to "fix" it such that the now-exploit works again, or doing a similar thing to another boss with a similar mechanic, would prevent you from getting banned.

Boosting with a 70 is still penalized by the instance reset cap per hour, and XP decay mechanics (for grouping with a much higher level). You also go in and out of combat appropriately, which decays your durability, forcing you to have to leave to repair. Granted, being hit by mobs also decays your durability, but going in and out of combat frequently accellerates the process.