That's my personal opinion if transfers to Horde are even opened. In my full opinion, they shouldn't be opened, period, but if they are, the bonuses for Alliance should stay in Alliance. That's just common sense, and any uproar would come solely from people who expected to abuse the bonuses and hurry back to Horde in the first opportunity, never to actually stay in Alliance and bolster their population and general game capability, which is the whole point of the boost. "Abusing bonuses is abusing" shouldn't be something that needs stating.