[pionar]

Either I'm misreading your comment (entirely plausible), or you're misreading the article. I read that as a snarky way of saying that people aren't really missing the "expiration" emails, they're just too lazy to do anything about it.

[waqf]

Right, the article was saying that. But the article was jumping to an unreasonable conclusion, because of course you never hear from the people who missed the "Billing receipt" emails.

I assume that was GP's point.

[mikeash]

Indeed. There are going to be four kinds of people:

Miss both e-mails.

See both e-mails.

See the reminder, miss the receipt.

Miss the reminder, see the receipt.

All four kinds of people exist, no doubt, but you'll only hear from the last kind.