I am running a classified website and recently I removed 30,000+ ads that came from hired ad posters (I assume they work for SEO and ad posting companies). 99% of those ads came from one particular country. The ads don't look junkie and the links in them lead to legit websites, but I am thinking Google is not going to look favorably if my classifieds is filled with ads coming from hired ad posters.
If you ran a classifieds would you allow those types of ads stay or would you remove them? Do they bring value to a classifieds?
Maybe some of you have had a similar experience. I'll be happy to hear any suggestions and ideas.