Scammers are intelligent and many of them can even be considered as genius because of the many strategies they can employ just to fool people and have them open their wallets. Of course, scammers will always tools that are available to them and this is the reason why bitcoin is an easy target because once the transaction is done there it is already irreversible unlike with PayPal where one can possibly file a refund. Irreversibility then can be good or bad depending on the situation. I was one of the victims of scammers before so I understand how it felt to be part of the statistics.