Whenever you see a product or service advertised on the internet where payment is made through a money transfer you should be deeply suspicious as this is a widely practiced method of scamming that offers absolutely no comeback for the victim.
The ploy is to sucker you into thinking that the clandestine nature of the transaction warrants the anonimity of a money transfer. The psychology is textbook sociopathic: The seller flatters you, painting a picture in your mind that you are elevated into the in-crowd* carrying out a clever conspiracy to get one over the system. In truth, the seller is just out to get one over you.
For instance, the same scamming technique is used to sell fake stolen credit card details. Where stolen credit card details are supposedly being traded, neither buyer nor seller would want their real names showing up anywhere. This means the normal link between buyer and seller, where identities are known to both, doesn't exist. Criminals have cottoned on to this broken link issue and are exploiting it on the internet for everything they can get, thus proving the old adage that there is no honour among thieves.
If you send money via Western Union these days you are asked if you are using the payment to buy goods and services and, if so, are you sending the money to someone you have sent to before. Sadly that security measure is all too easy for crooks to sidestep. All the crok need do is change their identity next time they pick up payment from a naive buyer or operate in a country where money transfer procedures aren't always strictly adhered to. The lesson to be learned here is that any legitimate internet retailer will always use a payment system such as Paypal.
*Cosa Nostra, the Sicilian Mafia, call themselves among other things "Honoured Society".