I have seen many posts on here bemoaning to fact that they don't know if the behind closed doors area is worth the price of admission. I would find it very interesting if they would just open the door a crack for a few days. Surely the management could disable posting for those members that haven't paid, but they could still be able to look around, see what happens there for a couple days. Webmasterworld would be able to plan ahead for a large increase in traffic (good numbers to show potential partners) and possibly increase subscriber rate due to the lifting of the veil.
What could be wrong with that?