Every time you open the Clara.io Editor or View the scene you will see an increase in views.
Also, from time to time our development team may notice that scenes are "hanging" or otherwise having issues, we may view them to see where the issue is coming from.
The view count will change periodically, but it does not mean your scenes are publically available to view.
Hope this clears it up!
~ Kiefer from Exocortex