Brakmage - of course that would be hard. They still could create PvP zones. Just highlight a region - say, Stranglehorn Vale is PvP area and Durotar is not a PvP zone. Get me? Why don't they just create that - it's a lot simpler and less complicated that way.
Solitaire - Wow.... O.O
Javon445 - I understand it had to be removed due to PvP situation and the fairness is your top priority, sometimes us players really do need Retribution aura to farm. To assist us in mass killings *commence maniac laughter*. I spoke to few players the other day about this, and of course they didn't like this being removed - They really needed this for farming. Just remove it for PvP.