Dmoz is a mostly con, a case of who you know that edits. Most of the editors have their own websites on relevant pages and reject or just ignore related competition. I see it time and time again.
But its great if you know a good editor that edits at dmoz , similar to buying facebook likes. Not about if somebody likes it or not, give them something and then they will like your page.
I recently complained to the bbc about steve right asking for likes on the bbc2 radio website in order to get a menion on sunday love songs. And to my astonishment they agreed and stoped him saying it.
But its the way the internet works unfortunatly, if you can get on dmoz go for it, but you may have to scratch somebodys back..
Ps, Im having a bad day, thats why im ranting...lol