It seems obvious that the real question that was being asked was "How hard can it be to type some computer words to make a program [given the current state of t

It seems obvious that the real question that was being asked was "How hard can it be to type some computer words to make a program [given the current state of the software industry and technology in general]?" and the answer to that question is "not difficult at all." Sure, you're not reinventing computer science. But a lot more work goes into making and maintaining a product than setting up an email filter.