This is, hands, down, the best thread the OWF has seen in a long time. Each of Dajobo's points are viable, apart from the war chests, which nobody would be willing to get rid of. I personally would be willing to help compile a list of alliance descriptions as he pointed out.
I might have missed the reasoning, but why can't two plus nations on the same IP not play the game if they do not aid, trade, war, not in same alliance etc. or interact with each other in any way?