I think the last few posts illustrate a very important, yet underemphasized, part of the Derm match process. Simply put, completing LOTS of research is not necessary to get interviews. Completing SOME research is very important in getting interviews. Think of it like a checked box on your application.
My personal advice for all those wanting to match into derm: it's much better to concentrate your efforts on doing as well as possible in classes, rotations and boards. Work in one original article, or maybe a few case reports/review articles sometime prior to applying.
It is difficult to argue against AOA (which is a culmination of excellence in all of the above attributes) being the most important factor in getting many interviews and few interviews.