Simple, They just want to get an easy way of earning money. Cheating and stealing are part of our human nature. We do have a devil inside of us and we are fond of taking advantage to those people who we know are vulnerable. Scamming has been around in any type of industry, and we can't contaminate those people as they can easily jump from industry to another. Some people tend to scam due to influence of other people, urgency and etc.
I like the way you share your opinions sir its true scsmmers are fond to those people who we know its vulnerable and weak.,i dont really imagine how those kind of people can do such things like that,,,they never continted of what they have they like to fool and hurt someone's feelings.