In my experience, the first thing you should do is agree as a world on a way to ratify future Private World Rules (ie half +1, two thirds, Vet Committee etc.) and use half-plus-one as the threshold for THAT vote. From there, use that voting structure to act upon any/all rules being debated. There isn't a way that you're going to satisfy everyone, but this has proved to be the most objective/popular method in my experience.