Okay, so here's how to solve the we-need-people-to-make-things problem:
We make and host or host existing simple, plain-ol'-fun gamemodes like my Canyon CTF, Tezuni's Slopes CTF, Randomizer DM, Bumper Kart, etc., and run servers for those regularly. Then people join, play for around a month, then those who are going to make things will probably have decided to do that now and do so.