You can append to your existing e-mail address in various ways, and this could be pretty useful for seeing who leaked your e-mail address to spammers. For example, for your bank, give them the address myaddress+banking@gamil.com. Then, if spammers send to that address, you can quickly see where they got the e-mail address from!
I’ve tested it with Proton Mail, and it works in exactly the same way.
See https://lifehacker.com/your-gmail-account-has-unlimited-addresses-1849809691
#technology #email #antispam #privacy
Why?
Sorry, I thought the rest was implied. Because the company also sold user data (and stated that in the T&C’s). The industry is very aware of email aliases and so it is more valuable to have sanitized data.