Finding and interviewing ex-editors

I guess I'd like to know why they did it in the first place. What problems they were noticing. And yes, we definitely want to know if it worked. It might also be helpful to have some numbers about the size of the different communities. (Even better would be the growth curves of each community! We obviously know that a young community will grow quickly. But did one do a better job of resisting a stagnation in growth?)