I was suffering from some anxiety about this same topic, and I'm glad I stumbled upon this thread.
For one thing, I'm glad the audio mods have taken time to explain the situation. I had no idea what scale of their work was. In fact I kind of pity them. I don't think I would be able to handle the work they have cut out for them. Not only sorting out countless of new submissions but dealing with the usual shit that accompanies a high traffic site.
I just uploaded a few tracks with out really understanding the time line, so I was worried at first. Glad to know its just the mechanics of the AP.
On the other hand, maybe I shouldn't have started by uploading tracks that I had already once posted on the internet, on my acidplanet.com profile, which I have maintained since early 2004. At least I can provide proof of my identity.
Keep on truckin', audio mods.