Sure thing, and I understand. Hah. Could have gone worse. At least it didn't devolve into a YouTube comments section. (yikes!)
Overall I love WAB, it's going to exponentially increase our effectiveness as a GIS dept. Moxie's design and architecture of it are beautiful, classic object oriented design.
But yes, this is one of those things that one must see from the users' perspective. There's no Off! It needs a 'reset' button, and/or an on/off for the 'remembering'. Our flagship viewer with many layers could get 'messed up' (the technical term, you know!!) and I envision users calling me..I'd walk them through deleting the cache... Which may reset other things they didn't want to reset, etc etc. And so we shall wait until WAB 1.4 for now.