We would note that this came via the mail and the address for the business is on the customer facing “About Seller” page. Amazon wouldn’t have to be hacked for your Amazon business address to be exploited in this way.
As noted by @Lost_My_Marbles anyone can find your contact information by clicking on your store name on Amazon.
As to sales data, they don’t have a clue. All they do is flood the postal system with cards and a percentage will have slow to nonexistent sales – probably something in the area of 20% since the ‘average’ account sales number is pretty low to begin with.
It’s a numbers game. Make enough contacts and you find a prospect. Get enough prospects and you get a customer. Back in the day my sales manager made us make 20 contacts a day which was actually talking to someone on the phone. Now you flood the internet and call it ‘progress’.
USPS Bulk Mail rates (per google) is around 20¢, plus you have the cost of the full 4C postcard, (Maybe printed in China?). That is 25¢. In Bulk I am guessing here. So a 5,000 mailing without the address is $1000 to $2000
Where to get the addresses. Well probably on some blackmarket. Must be a team of Chinese that are paid to find Sellers, and info, then sell to the market a list of names - 5,000 names for $200? More, or less? I am clueless. But those names can be sold over and over.
Then you convert 5 of the 5k, and pay $1k, and your time to convert, and your costs are $7k
Sell those 5 for $10k each, and you are in business.
Whatever the numbers, it is all just a business
Yes, sleezy and not to our communities benefit, as it harms Amazon.
The best thing to do, would be to send to Amazon Corp. Anonymously or not.
You just send @HobbesIsMyTiger that contact info, the postcard folks will be happy to hear from them. You could of course charge a small fee for the service…
Back before everything went digital the brokerage office I started at had a “City Directory” for Milwaukee and surrounding area. It was about a foot thick, hundreds of pages, and, tons of information about every resident.
Name, address, phone number. Everyone started prospecting at “A” and worked back. I started at the back and odd letters – Z, X, Q and so on. Developed a few good clients from the “Q” area. Seems no one bothered to call those at the back of the book. Eventually I was even able to pronounce a whole bunch of the Polish names when I called. I could even spell some of them eventually. Helped that one of my college roommates Freshman year was Wroblewski (ra -blur - ski).
Then, when they sent me out to the ‘burbs’ to run an office I could buy lists of tax records – address, owner, assessed value and so on. Had to find phone numbers but not everyone was cell phone savvy back then.
Later you could buy a data base on disk with even more information.
Since nothing gets thrown out around here (my really bad habit) I still have a lot of that info laying around someplace. MOST of those folks have likely relocated to a cemetery someplace.