It should have been clear I was referring to the spirit of sharing in the Amiga demo scene itself.

It was no secret people were looking at each other's code. Reviewing the code was a way to learn about how to implement demo routines. But it was also a practical way to learn about programming the machine itself. Things you will not find in any manual.

I was not making a claim about licensing. Perhaps you are not familiar with the notion of a metaphor.