Comment by vintermann

> and the site also won't send you any more email because they don't consider the email verified

Netflix, for one, didn't do this. They kept allowing this guy to "resend his confirmation email" periodically over several months (I never had a Netflix account).

My theory is that it was an affiliate scam of some sort; someone probably got paid for everyone who signed up with his code. So he "signed up" thousands of random mails in the hope that some of them would click through on the "you're almost ready to start your Netflix journey!" mail and actually subscribe to Netflix.