Fake profiles on dating sites to get people to join. Yahoo Personals was sued for their romance scams. Most dating sites, if not all of them, have many fake profiles to get people to pay, or, for sites that are free, it gets people to sign up and bring a lot of traffic to their site, making the businesses gain profit from their advertisers. Plenty of Fish, a free dating website, is full of romance scams.
Think about how a personals website starts if it starts with zero members. Who would sign up? It is theorized all dating sites start out with and continue to have romance scams. It is an unethical, yet very effective way for their business to make money.
Don't sign up for Plenty of Fish--you will waste most of your time with romance scams.
Most, if not all, of the beautiful women on dating sites are more than likely romance scams.