stoner, I could only imagine that answer is authoritative IFF (if and only if) you sat atop the management of the ODP/DMOZ and could cite, based upon personal experience, the number of active (actually doing their job) DMOZ editors.
I don't have this data. Do you?
I know a few DMOZ metas have responded here in past years. If any are still around it might be interesting to know what the trend has been in the "editor supply".
Seems people are willing to endlessly "supply their (free) time" to sites such as Wikipedia, Pinterest, Yelp, Facebook, and others.
What about people willing to help build and maintain DMOZ?
Any stats folks are willing/able to share?