I know SO and other Stack Exchange sites give me a notification when there've been new answers/comments/edits on questions I've added to my favorites - I don't remember the exact wording, but it's one of those things that show up on top of the screen.
This site doesn't seem to be doing that, unless my memory is way off and all this content that looks new to me when I go back to my favorites has actually been there earlier.
Has anyone gotten this notification? Does anyone know why it's not happening? Is this just a feature that isn't on during private beta?