Currently, the way the forum is working, I believe they have moderators that have to approve what you say. They do this for a number of reasons including legal. They could get in hot water if they allow a post that they do not have "rights" to (I.E. they can't post a WITB for certain players).
Maybe it is a BETA thing, but I do know what you are saying. Updates seem to happen from 8am to 5pm PST (since the hub is in the East) and that is the guys work hours.
Is there a way to have posts automatically approved by the system but have "key words" that kick out a post to be checked by a moderator if it could pose a problem?
Overall, the purpose behind the moderator is great but would the way around all that be just editing your post? I'm under the impression that, if I post something then go back and edit it, it is updated immediately and you can say anything you want without it having to be re-approved. (I may be wrong on this, but that is how it seems to be working, please correct me if I am wrong).