This is not about use cases. Let me answer in a way analogous to what I believe Steve Jobs would do: there is something elegant about seeing the Evernote logo and shared note in an email. I have had people go "oh wow that is cool". So, forget the use case and look at how delicate such a dish is. You should bring it back instead of thinking from a functional point of view only. Bring it back, and make it bold and beautiful like before.