I wouldn't worry too much about that either. We run into problems with many "highly qualified" applicants (whether the qualification is in their own mind or shared by some group of other people, isn't germane to the point.) They often tend to gloss over the important parts of the application: as if it really doesn't matter whether they can find, describe, and categorize websites. Perhaps they could have -- who knows? The fact is, too often "qualified" people just don't bother. And when rejected one time, they just say more and more about their qualifications -- as if that were ever the problem!
But that's almost never the problem. I don't remember turning down anyone, ever, because I thought they didn't know the subject well enough. A weekend surfer who did well in high-school English (well, perhaps not in California, but in many public schools) and who COULD have passed Library Science 101 if he'd ever wanted to take the trouble of studying -- has all the technical skills and knowledge needed. I never took ANY coursework, at any level, in the topic that I started here -- or in several other topics that I've spent a great deal of time editing. And that's not unusual. the ODP community is rather stridently populist, at least in the sense of being intolerant of elitist posturing....which you'll often see in webmaster forums. "I'm the world's foremost expert on [whatever] and yet the ODP rejected me." Yeah, very likely. And even if they'd been accepted, with an attitude like that and a chip on the shoulder like that, they'd likely not have found the ODP community a congenial place to hang out. My experience has been that learning is generally worn lightly, but respected all the more for that. You won't be able to tell who the rocket scientists are (and yes, we have some) or who the pre-teenaged kids are (and yes, we have some) by reading the forums. Too many of the necessary editing skills aren't taught in most academic coursework -- in many categories, Introduction to Computer Fraud is perhaps the most important single skill.