Exactly, Henry! It just took me bucket loads more words to say the same thing.
Wish I had thought of the street signs analogy of helrazr3. We have signs on side streets without signs on the main throughways.
Another way of looking at it: We have a coffee can labeled Screws - Bolts - Nuts and two others labeled Miscellaneous. Somebody comes in with a nail and wonders where to put it. If we had a shelf labeled Fasteners, holding the first coffee can, at least the nail would end up in the same area as the screws, bolts and nuts.
New member comes in, sees "Introduce Yourself", that's no problem. He comes in wanting to know how to identify an engine block, that's no problem. If he comes in wanting to know if he should replace the rotted frame in his 1902 Little, there's a problem, so he has to choose among "Hotrodding Basics", "General Rodding Tech", "Suspension - Brakes - Steering", or "Site Suggestions and Help".
Clearly labeling the major streets and the side streets coming from them should help anyone find their way easier. We're not talking about idiots. Anyone tackling work on a car will be able to figure out if the part causing troubles is (a) something that makes it go, stop, steer, or hang together, or (b) something on the body, or (c) something inside the body, or (d) garage or tool, or (e) none of the above. Help 'em find the right 'block' of the city and they can hunt up the right building from there.