At least the Source _is_ useful for novice programmers that are interested in 3d game programming. So at least the source should go into "main". Maybe there is no complete free dataset available right now; but there should be enough "free" models and textures to make a one-room game with this engine which is completely free... I plead for titling this package "quake2-engine", so there is no need for any data files... I consider this discussion somehow ridiculous. The software is free; If gimp didn't include any free brushes, would it have to go into contrib too???
Greetings, Erich