Of course. I mean, given how often this happens- its hard to understand why someone would deposit funds on these things.
It's hard to understand why someone would pay someone to send them illegal drugs through the U.S. mail, often to their actual physical home address, turning what would otherwise be a minor possession misdemeanor into a major federal felony subjecting them to following a state jail term with a trip to Club Fed.
What conceivably makes this look like a good idea? People are stupid, I guess.
Likely because they realize that very little of the actual mail is checked and they feel that means it won't happen to them. Companies like FedEx and UPS have their own contracted Customs agents to check a random sampling of about 0.02% of all packages unless something suspicious is reports. USPS checks some as well but only international and reported packages from my understanding.