I don't seem to find the code. It would be great to be able to audit the code, fork and send pull requests with possible upgrades.
It's a bit unsettling to click to allow "email@example.com" access to my documents, to send e-mail as me, etc. How do I know the script doesn't duplicate my documents to another account, send out spam as me, etc? It's reasonable that the script needs to do these things, but it would be nice to have a copy of the script in my own script.google.com so I can see what it does and our users see that firstname.lastname@example.org wants access rather than "some guy on the internet".
This website is called "Script Examples" after all. It's a bit strange to have examples one can't edit.