I was applying with the intent of actually helping alleviate the obvious backlog of listing requests.
That's a fair reason but by no means the only way of building up quality categories, as you will find out if you do join us. There is no obsession or pressure on clearing backlogs, most of which (in your area of interest) comprise largely of spam in any case. Backlogs don't bother editors, only submitters, who we do not exist to serve in any case.
This community needs active editors and you tell me I'm not ready because I am more than willing to do the job that I volunteer to do!!?? Strange logic.
Active editors are good, editors who understand the concepts and principles of DMOZ are what is needed. We value the editor who, balancing their working and family lives, produces a single edit in three months, just as much as an editor with plenty of free time and who produces 250+ edits a week. We are intolerant of criticism of the former which is what you imply by "not doing their job". DMOZ is about quality not quantity. A single good edit (add, delete, modify) is worth 1000 poor edits done hastily because someone thinks it is important to reduce waiting sites.
But it is by all means a responsibility since it is something that person has volunteered to do.
The responsibility is to do a single recordable edit every few months. That is all anyone signs up to do. Anything above that is considered a surplus. Most editors produce a surplus if and when they can and the project and community is grateful for each bonus edit. If you come in as an editor thinking and articulating a belief that editors who do less than
you think is their responsibilty are somewhat lazy or neglectful of their responsibilities as
you see them then you will not last more than a day or two.
There is an awful lot of learning to do as a new editor before the investment the community puts into helping you become a good editor pays off. That's why the selection process is, for some, quite tough.
As I said before, when you understand these sorts of thing then maybe then you are ready to become an editor. There are tens of thousands of webmasters and SEO specialists willing to "help" us with our backlogs, only those who understand the type of help we actually need and how that help would be delivered to assist in our objectives not their own, are worth accepting.