1. The download was a zip file which, when unzipped produced QTView.app (not a package)
2. The QTView.app MUST be moved to the applications folder. Running it from the downloads folder will fail.
3. When the error message about the “Unidentified Developer” happens, Go to System Preferences - Security and Privacy where a question about allowing this app to run will be located.
Once they have, you'll be able to view a graph of their reputation gained over time.
Here's a preview of what the graph will look like:
No reputation gained yet.