Ok. I think I need to explain two things here.
First, I started this topic with title "I submitted my site...". Actually the site I submitted on dmoz <URL removed> is not my site but I was one its writers before. It's the most famous and popular Persian language website in space and astronomy. I requested twice in past 3 years for adding this site to dmoz but it's not added yet. While there are some totally useless and spam sites in related category.
So according to the first point, and also according to useless sites currently listed in Persian section of dmoz, I don't think anybody reviewed these sites and absolutely there is no quality control in this section.
I'm not agree with you about change of websites content. Because usually famous and well-known websites will remain and they keep their data, they'll not change easily.
You said people who work in Dmoz are volunteers. I like to help because I know I can do that very well, but it need your trust. If you can't trust me and if you can't let me be a part of dmoz as an editor, how do you expect me to help?
Why Should I spend my time when I see your current Persian editor (or editors) is not deserved to be an editor here? You don't need reasons to why remove current sites. There is so much. You give me only one reason that why you listed these sites on dmoz?
And If you don't have any Persian language editors currently, and If you don't like me (because of the way I'm talking), you better find some new editors because obviously Dmoz list for Persian language websites need a change.