Great thread, I sincerely hope we can come up with a viable solution for our declining numbers. On that note I will throw in my suggestion on how we can increase player retention. I had some spare time earlier today and decided to try and recruit some new tech sellers for my alliance. It killed me to see that 9/10 nations I sifted through at ~25 days old were three or more than three weeks inactive. IMO the problem is not the number of players creating nations, we have plenty, it's finding a way to retain them. Here is my suggestion,
1) Highlight the benefits of joining a community (alliance) in CN in the welcome message every nation receives upon it's creation
2) Offer a cash incentive (6m?) paid from the game itself for joining an alliance.
Highlighting the benefits of alliances in the initial welcome message combined with a cash incentive could potentially be a great catalyst for encouraging new players to be more open to recruitment which in theory should increase retention simply by interacting with the greater community.