Why you shouldn't necessarily take advice from people who are very good at what they do.

On a writing forum that I browse, an up-and-coming science fiction writer with a number of good sales to his name wrote that a majority of the stories he completes never go out for submission because they don’t meet his personal standards of quality and that, furthermore, there are only about 5 or 6 short story markets that he submits to, since very few…