Ok and for what reason does this actually apply?

If you are rolling as a summoner and something drops that you NEED, you have first priority.... If you already have the item, then you pass because you can not obtain it anyways... Don't see the point here. This seems like an elitist's way of saying, join our party, and if the bard ring that you need drops, you can not need it anymore, you can greed it only so that our FC mates that have an alternate lvl 36 bard can get it over you and having it waiting for him to be an ilvl80+ character when he gets his alternate duty roullette leveled to 50 in 2 weeks