I don't think this is true at all. If you find a bug or scenario that in some way allows you to skip content and reap the rewards, you exploit and share that information until it becomes so well known that it MUST be dealt with. The reason is greed and laziness. Anet are too lazy to fix their game, so people can continue to exploit it. Do you realise how long it took for gZoom to be stopped? I'm sure it's back up and running by now, too, but we're not even talking about third party hacks. This is about Anet being too lazy to fix "exploits", so they call them "exploits" and tell players it bad m'kay.
How about no, Anet. Fix the exploits instead instead of banning. (this is more related to dungeon skipping, namely Arah and AC)