I like the ability to promote posts or add banners etc. but it is very frustrating when a business promotes a lot of the same or similar posts. High volumes of business postings ruin a lot of classified websites and have definitely been a downfall of Kijiji. It’s very difficult to sift out the business listings, and some businesses end up running both business postings and personal postings for the same products.
I have no trouble with small side businesses doing their posts, but the larger businesses really overpopulate the listings. Wheel and tire listings are especially annoying.
I suggest more monitoring, and more filtering within categories, so you can narrow searches more accurately.