The soulbound items don't get marked as a warning item anymore, but they are tradeable for 1-2 hours. So even if your main picks up something it doesn't need (DE-able, wrong toon, etc.) I am not sure how it will work with items that just get soulbound (quest items like Netherwing eggs). So far it hasn't bothered me, other than to trade the DE-able item to my enchanter (have to open trade first, not just drop item on portrait since it tries to enchant it).