Okay, on Facebook Messenger, what does it mean when there is no timestamp next to a friend's name? For instance, when a friend is active, it shows a green dot next to their name. When they are not active, there is a timestamp. It will say something like :"active 2H ago" which of course means 2 hours ago. However, what does it mean when there is nothing at all next to their name? Someone told me that it meant that they have probably left Facebook, but that can't be right. It just strikes me as odd that there would be no timestamp at all next to their name.