If you let anyone with a link view or comment on a doc, viewers who aren’t signed in are invisible. It would be nice to see how many anonymous users are viewing a doc at a given time (a la Google docs’ anonymous animals). It would be even better if we could keep track of how many people looked at a doc.
+1 from me
This kind of analytics will give an other perspective on what is developed and it’s usage.
It would even go beyond the already possibilities to count how often and when a button has been pushed