Read receipts are, at least in Outlook, optional to respond to. So...I don't see a problem. People send mail asking for them because for whatever reasons they have because they want to know if you've read the email. So what? It's not terribly effective as a practice, because the recipient can just ignore them but some people want to send them anyway. Nice to have the option.
Ars continues to discuss the most important topics in tech...
I just realized this after seeing the referenced article title. Does make my response marginally off topic. I have never used Facebook or Snapchat so I had no idea they used read receipts.
Does iMessage have these too? [I don't use that either]
Ars continues to discuss the most important topics in tech...