Dmoz is a joke. Years ago, before all the corruption, sites were listed because you had good content. Now I have no idea how they are listed. Case in point I know a few people, myself included, who submitted links from good quality sites and they never got listed.
While ad farms that were regged for 2 months were listed within 2 months of submission. Talk is unless you pay the editor you don't get listed. And the "Become an editor", part is useless. What happens in most cases is that the editor of the category above yours will snap up your links as theirs (You have to supply 3 links for sites that are not listed as a test that you know what you are doing), and you still get the canned "Not excepted" message.
Of course they get the credit for the links you supply.