Ok, it has been more than one month. Site was improved a little bit more. Number of ads passed 100 (all real except 3 obvious ones), and growing exponentially. We'd like to know submission status (submitted 1.5 month ago). We submitted the home page, but search page looks better. Site is currently free and there are no annoying scripts, tricks, hassles. It is very easy to create an ad. I invite you to take 2 minutes to create an ad as explained on home page, and block or delete after it is done. User interface is as clean as possible. We will add more pages and move some content elsewhere. We had to add sentences with keywords which are completely harmless (and in fact saying our site is suitable for that kind of audience), to keep site look more on topic to search engines. Still people who want to critisize the site refer to sentences which are not necessary.
In any case it is an extremely good site which is fast, clean, good looking, easy to use, free of distractions popups scripts, currently free, nicer to low income people and students, likely to benefit environment; and most importnatly better than vast majority of pages in dmoz.
Looking forward to hearing its status.