Why do all mailing list hosts use a confirmation e-mail to confirm subscriptions? It can _only result in more unwanted mail_.
But you'd still get a thousand confirmation e-mails! It's no different than putting an unsubscribe link in the mailings...
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... _except_ that it is strictly worse, because now everyone who does subscribe gets _one unwanted mail_!
Thanks. Twitter will use this to make your timeline better. UndoUndo
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Takes about the same work to send you a thousand emails as easily as sign you up for a thousand confirmations.
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The goal is to avoid *amplifying* that nuisance by sending you hundreds of emails from one action by bad actor.
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