well, im sure this has been seen by many, but i haven't seen a post about it yet. This code is in the latest beta, or so they say.

"When the final release of patch 1.10 goes live, the item-deletion code will then ONLY affect characters within the Battle.net Realms, not the characters used in single-player, LAN, or Open Battle.net games. The current patch does not delete duplicated items, but in the final-release version of the patch, those items will be subject to deletion as well."

(taken from battle.net)