I was one of them. The existing Kingdoms are fine, they just need members to RP. That is, some of the existing kingdoms are fine. You should have had an option to eliminate unactive Kingdoms, I would have chosen that. But killing them all and starting over is a very unfair thing to do to people who have spent days/weeks working on their respective kingdoms(me and Birdbird on Dustari, Cloud_X and his friends on Tyealia, etc.). So, I say leave them be for the most part.