> So consider the extreme case: what if the user fat-fingers an unsubscribe (without realizing) to their local electric company's e-invoices, which is what they

> So consider the extreme case: what if the user fat-fingers an unsubscribe (without realizing) to their local electric company's e-invoices, which is what they've been relying on to prod them to log onto the site and pay the bill? I actually unsubscribed from my provider's invoices. That's because I have activated direct debit from my bank account so they're always paid, and I can view my past invoices on the website. However you make a good point. I'd say the one thing where it doesn't make sense to have an "unsubscribe" at all is on "bill unpaid" emails.