But the more 'arts' side of things such as making models and textures, benefit far more from 1 to 1 tutor-like relationships where feedback can be given directly on creations.
Ok, I'd agree with that, hadn't been thinking in those terms as I haven't seriously been involved in graphics /3d.
sometimes mod team members simply aren't aware of what is generally known in the community - therefore when they make a discovery they're simply not sure whether such a discovery has been made before or not.
I'm sure that's true, and also discoveries get 'found' discussed in questions etc then lost in depth of threads if no-ones made tutorials - stickies etc. For MTWII does that provide a case for moderators / assigned members being responsible for a sticky / scriptorium section on relevant topic (units, map, ai, etc..) that either compiles or provides links to discoveries discussed elsewhere (and yes I know that would be a pain to maintain - but if we're talking about the optimum solution....)