it's kinda funny since the target market for something like that is going to be profoundly incurious about how it has to function in order to deliver the benefits they're being sold; precisely the species of douchebag whose emails i summarily send to /dev/null

Couldn’t the same be said about, say, Gmail? There’s a hidden exchange of your personal data and privacy for the product.

I missed the original article and am profoundly disappointed. And as a (soon to be former) Superhuman user I have to say I don’t even know why they do it, the product is great for plenty of reasons that have nothing to do with read receipts. I didn’t even know that feature existed!