I documented the 13+ emails I received over the course of trying to buy a wallet: https://jfloren.net/b/2022/12/12/0

Everybody just assumes they're the only thing hitting your inbox, like I don't also have "engagement" messages from 3 other stores I bought shit from two years back, plus PG&E trying to convince me to install a meter that can turn off my A/C remotely, plus Nextdoor trying to update me because somebody thinks they heard a gunshot...

> Everybody just assumes they're the only thing hitting your inbox

They know your inbox has 100s of competing senders and their message could get lost, that's why they spam. A large number of people don't curate their inbox, never unsubscribe and just make do reading 20% of their messages.

Same with phone notifications.