I think this is making it too much a long the lines of an RPG.
This server is a free build server and the way to get good is to practice. Yes, I agree that showing guests how to build would be helpful and such but a college would be a too drastic of a measure.
Maybe if there was to be some sort of tutorial done by 1 Crafter or 2 to help Guests build more to the standards we accept for recruit+. They could just be taught on a private world or something like that. To attend the 'class' would be to sign up to the class via the forums.
But personally, I don't see this escalating to anything major.