Do NOT use this in your projects. This was made to be satirical, and a NON-example of how to be a good Scratcher. Making projects that do not terminate when the stop button is pressed is considered bad practice, and should not be done except in special circumstances.
The scripts behind this are simple enough that the fact it is so easy to do this should be a bit worrying. Of course, anybody playing could just click 'see inside' and get rid of it, but regardless: The timer should not advance after the stop button is pressed. This will solve this issue. (of course, this would remove some cool possibilities, such as a stop button clicker, so maybe just be careful)