I don't know what the issue might be, whether its too many posts for the numbers of mods able to approve them, or not enough attention is being paid. I *believe* my post hasn't been approved yet (been about 5 days).
My suggestions:
1. Remove the mandatory Admin permission to post on this forum. It already requires a large post and rep amount to post there. I believe user reports can deal with any inappropriate threads like they do on other forums.
2. Bring on more mods to permit threads. (this is a more demanding suggestion and may not be plausible)