posting ads without registration !!
I started my website with ClassiPress before many others people in the same subject (with other script) but unfortunately they succeeded faster than me and when I searched for reasons, I found that the most powerful of these reasons is that visitors can post their ads without registration, (it's the truth a big percentage of people don’t like registration).
many people they click on "Post an ad" and when they read "you must register" they automatically leave the site .