> Don't modern services solve this problem just by HTTPS-linking back to the service? Not all of them. That's actually a feature in GMail: it will populate you

> Don't modern services solve this problem just by HTTPS-linking back to the service? Not all of them. That's actually a feature in GMail: it will populate your calendar from the information it reads in your confirmation emails, right? I would argue that those modern services that send me a huge HTML-only email that only contains noise and a link to their website are downright annoying. It is very nice to receive a text-only update that contains useful information that I can read offline.