I think it is a bad idea.
If the experiences mappers only go to the experienced forum then the new mappers will get even less answers. Also more of the answers they get will be from other new mappers, including quite a few which are incorrect.
If the experienced mappers read both, then it hasn’t lowered the amount they have to read at all. In fact, it will increas it, because you know that people who want an answer in a hurry will post in both.
Furthermore, how do you distinguish between a newb question and an avanced one ?
Sicky threads are great, but the fact is that the people who ask really clueless questions usually do so because they are too lazy to figure stuff out for themselves.
If your topic falls off the page without an answer, bump it. If it still doesn’t get an answer, either no one knows offhand, or they are to busy…