I think this is a good point. When a newbie joins the game for the first time they will most likely join the fullest server which is usually -crack the speed or [OTB]Speed , which is all well and good but when it starts to become a bit repetitive they may look for a different server/ game mode to play.
One of the things that would keep people interested would be more game-modes maybe. Whenever I see people in a deathmatch server It makes me want to play because its something different and it varies the game.
Surely using game modes like KOTH and Siege as well would be benificial especially when we have so many empty servers that could be used to host different game modes.
Just a thought
Oh and - pgptrain