“I live a very boring life, anybody examining my transactional history is probably being punished.”
I’m the same way, but I get so sick of junk mail & such I think a lot of it originates in these electronic transactions.
Most junk mail is targeted by zip code. Some stuff happens because you have a “relationship” with the company (usually a credit card, or at least a loyalty card), but for the most part you and all your neighbors get all the same junk. We have a trash can near the mailbox, junk mail only travels 2 feet.