Ringing true doesn't make it true.

I’ve also learned that many of the problems aren’t intentional: many parts of Apple’s internal infrastructure are overloaded or extremely outdated, and they’re scrambling to keep up with their growth, often ineffectively.

One major surprise was when an Apple employee told me that the App Store reviewers are not outsourced: they’re all direct, full-time Apple employees. Many of them work nights and weekends to keep up with the extremely high submission volume, and they’re constantly expanding the staff to keep up with the submission growth.

Source? Why, the very same post that Gruber is quoting in this submission.

My understanding, from a contact within Apple, is that the reviewers are indeed Apple FTEs. It wasn't clear if they were somewhere on the main campus or in one of the satellite buildings, but I was led to believe they are in Cupertino.

Certainly some of the stats I was able to get from testers (thanks PinchMedia) suggest the testers have access to the AT&T network in the US. I could probably find IP addresses from Apple's /8 if people wanted to try to validate further.

I'm not sure what point you're trying to make here. I mentioned the iPhone Dev Portal, and code-level issues having problems solved, not that the App Store was magically fixed with 5 minutes of talking to an engineer.