DMOZ usually tell you if you've been rejected, though they don't tell you why. If you have a recent application in the pipeline, you can ask about it at
http://www.resource-zone.com.
I had this out with them once when I'd submitted what I considered to be a perfectly good application that was rejected without telling me why. I thought it weas rude of them since I'd put a fair bit of time into preparing the application. But I learned that they can't say why an application is rejected if it's down to grammer, spelling, and things like that. If they said it's because of spelling, for instance, the person would clean up the spelling, apply again, be accepted and they'd have a bad speller as an editor - and they don't want that.
Just out of interest, as an experiment I resubmitted the application without changing it one bit, and it was accepted. It didn't make sense but it happened.
All categories have editors, regardless of what it says at the foot of the page. Editors higher up the tree can edit all categories below them in the same branch of the tree. Maybe you applied for a small category that had a satisfactory editor a bit higher up who was looking after the category.