Yes, I did. It's really Diplomacy without a map, in the political arena. iI would think that this forum would be perfect to run Coalition. It has only been played once that I know of, but the people weren't active enough. It needs a bunch of active political operatives to make it work like it should.
By the way, it seems like someone might like to make some changes to the rules of Coalition, which is fine. The game really is still in the design stage. I'd like to be included in any discussions, but email would be better for me. The email to use is zendip18AToptonlineDOTnet.