Are you making knives or culturing pearls in your vagine? If the newb shit gets out of hand, have a subforum or sticky thread on general Q&A, Links, annoying questions that will be answered regardless of how many times the questions been asked in the past.
You can redirect new members to the area, and force readership. If they post dumb shit outside said area, mods can redirect... If they refuse to abide by those standards, then flame on!!! Fresh blood is the future of these crafts, but some people are dumb shits on purpose, and need to be weeded out for the collective good.
I'm not going to lie, the forum layout is a bit complicated even to the seasoned forum member... I assume the perks of paid membership enable easier surfing? If that's so those with general free membership should be given the proper means to post, receive necessary guidance and attention, and hopefully their experience will encourage them to pay dues... If people lack communal cohesion and/or a sense of solidarity, they're more likely to move on with their lives... away from our already eroding craftsmanship culture...
food for thought.