Incorrect good sir, if your still positive would you mind filming a rollback to your pre NoDo backup then pinning a pic to show us? That way if it really was possible (which it wasn't) we could take action on it by asking Microsoft.
Yes, I would mind, this phone is my life line, and screwing around with it just to satisfy this debate is not a productive use of my time. I don't care how certain you are, I vividly remember pinning several images of reference diagrams the first week I had the phone. Then I didn't use that feature after that, and only noticed it was gone when I saw this thread, and checked for myself. It's possible I'm mistaken, and had actually pinned some other part of the pictures hub, but then why would I and at least one other think this feature WAS there, and then went missing?
Perhaps YOU wouldn't mind filming a rollback to pre-nodo to show whether the feature is there or not.