What defines a problem as non-existing/existing? It's very subjective. While it may not be for you, the author definitely saw an issue that needed to be fixed.

What defines a problem as non-existing/existing? It's very subjective. While it may not be for you, the author definitely saw an issue that needed to be fixed. Again, I'm using the example of requests: was Kennethwrong to implement something new when there was already a standard lib?