Why on Earth would you trust a company that sells shipping labels? If you buy a label using some anonymous means, the parcel could be flagged. And the postal service could systematically subject those parcels to greater scrutiny without human involvement.

Some label printers might sell the info of every single customer who buys a label matching some criteria, including the condition that the buyer used anonymous means of payment.

Sure, some postal worker who thinks he knows everything will come on here and say, "that's not how we do things." But that's not how opsec is done. Good opsec means considering the risk in all its potential. Good opsec mainly listens to the risk, and generally not any supposed lack of risk.

I'm not a vendor. I'm just an asshole. But all of this fuckery about buying shipping labels from third parties using crypto to send shit anonymously? That's an opsec black hole. I bet the successful legit vendors have special means of buying labels so that the packages or letters don't get systematically flagged. Normal idiots who become vendors and buy shipping labels are bound to get caught or get their customers caught.

I'll be happy if someone proves me wrong.