Any data compromised is now sold to the highest bidder...
I have unique emails (a yahoo service) for many places I am registered. I like it so that if it starts to get spam I can just change the email in one place and drop the old email.
Solid anti-abuse systems would mean little gets through.
Anyone that works with a mail platform of any significant size will tell you that the vast majority of the messages coming in is spam. The anti-abuse layer should keep very nearly all of it out of the mailboxes.
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