Well, since it's already been addressed, it's not about me. The problem with adding new worlds is two-fold: 1. No matter what WifS demands, owners drop existing worlds to join new ones. They just do. 2. With new worlds being created, the uninformed believe they should wait to add another world so they can get in the brand new shiny world where the roads are paved with gold and the parking meters are made of edible chocolate. So, rather than join a good world today, they wait in hopes of entering World Shangri-la.
So, yeah, it slows down rollovers. And, as you know, maybe 1-2 of those new owners will be back. And they might just be an alias.