This is a great app, but may I make a suggestion that would make it even more killer? Have the app move users who bounce and meet certain criteria (0 approved posts / Not logged in/active in X days) to another group for easy pruning. My suggestion come from this: My user database is close to 12 years old. I just sent out a holiday card to my entire user base. Aside from spreading tidings of comfort and joy, I had ulterior motives.... it would be a great indicator of defunct users.