Many people have success with online dating. But at least a few times a year we hear of someone who was taken advantage of in an Internet dating scam.
There's no doubt that everytime singles meet someone new, they put themselves at risk. That doesn't mean they should stop dating. It means they need to be careful at all time and be aware of the typical signs of scams that could save them from a bad situation.
Remember, until you know someone well and have seen them in a variety of situations, you don't know them. Don't stop dating, just dating the smart way.