Yelp started by paying users to leave reviews and got a serious backlash for doing this. The nature of the “items” being displayed/created also plays a major r

Yelp started by paying users to leave reviews and got a serious backlash for doing this. The nature of the “items” being displayed/created also plays a major role in this, because unless you own a few dozens cars, starting a classified ads site for cars with only yours, is not going to get you far. Several dating sites got in troubles for adding fake accounts with attractive pictures to lure people to sign up for their paid service. That is a line you do not want to cross…