I totally agree too, but can't help wondering how much different this is from the (relatively) old forms of social interactions in the online world. For example:<p>SMS has a receipt option. iPhone doesn't support it, but my old nokia does. I could easily see that my SMS was not only sent, but received by the other person.<p>Even on facebook, without any seen/read features (which I wasn't even aware of), I can send a message to someone, and then I might see that they posted some updates, added a friend or made a comment on mutual friend's post. Obviously they have seen my message then. Same would happen with email as long as I'm also connected to the same person on fb...<p>Chats / Skype / Online status - I tend to turn my chats off completely unless I need to, but when I'm online - people see it. If they see me online (e.g. google chat) they can assume that I got the email they sent me...<p>Don't get me wrong, I'm not justifying making things even more public. Quite the contrary. I wish there were better ways to maintain privacy and what people see about me and when. But the problem is very much already there.