The work QC is "Essential Blogging". This is QC2, the second quality check. But I think we may need a third--there are still problems like a zillion URLs ending in a / that shouldn't. (e.g., http://www.foo.com/example.html/) Gnash.
A QC is a quality control check. After an author turns in their final draft, it's converted to a publishing format (XML or Frame) and copyedited and line-broken. The result is sent out to authors and editor for checking--this is QC1. Then it's page broken, indexed, and sent out for QC2. QC2 is only a week or so before it goes to the printer.
So now I'm going through PDFs searching for "http://" and pointing out buggered URLs. Lucky me!