Need,Greed,Pass, "and now" Disenchant

Q u o t e:
"I'll greed on everything to disenchant" doesn't work?

This usually works great for my groups.

Q u o t e:

[Iffy]: I'll roll Greed to DE the item. If you need it, roll Need. If you don't need it and want it DE'ed, please Pass.
Mage passes.
Lock passes.
Warrior passes.
Hunter rolls Greed.
[Iffy]: /sigh
Iffy rolls Need and DEs.

Before the next boss.
[Iffy]: I'll roll Greed to DE. If you need it, Need. If you don't need it, Pass.
Mage passes.
Warlock passes.
Warrior rolls Greed.
Hunter rolls Greed.
[Iffy]: /sigh
Iffy rolls Need and DEs.

Before the last boss:
[Iffy]: If you need the item, Need. If you don't, Pass. I'll roll... Oh, screw it. Not like you listen anyway.

I've run into this on occasion, though not very often. The Large Prismatic Shards tend to be quite valuable so people are willing to be organized to get their hands on them. If people don't listen and it results in rolling Need on everything, I consider it a lesson learned.

Q u o t e:
I've had enchanters roll on everything and ninja by not sharing any of the shards. I don't trust enchanters unless theyre guild members. It's also just annoying having to trade after every drop.

I haven't run into this at all and I hope I never do. Usually the shards are just piled up and traded to everybody at the end of the instance.