I understand where you coming from, but I don't think this "modern web-user" is unfamiliar with what email is, so the sarcastic tone is a bit over the top and u

I understand where you coming from, but I don't think this "modern web-user" is unfamiliar with what email is, so the sarcastic tone is a bit over the top and usually not appreciated on HN. Instead you could have spent time explaining a better way of browsing the content, or what to consider when reading. Instead of assuming this person doesn't know what a email address is.