Please do not post the same thing multiple times. The board software automatically flags certain posts as needing moderator attention. This happens the most often for new users. I'm pretty sure this is made clear at the time you attempt to post. Posting the same thing over and over again just makes that many more posts the moderators have to weed through later. This makes us sad. Don't make us sad. If your post/thread doesn't appear, just wait a while. Don't post it again. If it hasn't shown up by the next day, then you can try again. I normally go through posts in the mornings, and try to check a few times throughout the day, but I'm not here 24/7. There will typically be a significant delay before posts are approved. Just be patient.
I've got 8 paid apps in the app store. This past week I've seen a huge sales drop ON ALL OF THEM at the same time of about 60%. All this within 1 to 3 days.
July - Sept last year was also my worst period, but taking into account I have 2 more paid apps (niche engineering) and they used to sell pretty decently since Dec & March when I launched them I'm just surprised (and scared!)
Would it be related to the search update? maybe Summer months pre-iPhone 5? If this keep like this I'd just quit altogether iPhone development (working heavily nowadays towards an Oracle Java Certification these days)