The CNotes component is a very good idea and work.
But for my point of view, I think that the notes taken by the registered users are totally private.
They must not be seen by the Admin.
These notes and comments are made for the sole benefit of the user.
He takes notes of personal ideas about an article of the website.
These ideas are confidential.
If he wants to share publicly some info he can always use a Comment module or component.
So the idea would be to crypt the data entered by the users.
Having info for the Admin of the website about the total number of Cnotes in the site, the numbers for each user, the number for each page where the module is present on the form of Statistic is fair. But this is the limit to not cross.
Like this the possibility to edit a Cnotes would be not possible for the admin.
The users have to know what all they can write belongs to them and is not viewable by others.
Anyway, congratulations for your work.