I still play N/U servers when I see others are playing but lately I have been really into Turbo gungame. Another server has it setup so that once the person that kill u dies, u respawn and it keeps going till the other team is taken out. This would be awesome to implement into N/U.

Another suggestion is that maybe send out alerts for special times that alerts members of the N/U group on Steam to join a certain server. Maybe that will get everyone back into playing. Just a thought.