Contrary to popular believe, the owners of independent stores want the writer to succeed because then they succeed. But they are in a business. In my published story there was a misused word on page eight. MANY reviewers responded that they didn't make it past that blunder. People are watching.
People are aware.
Sci-fi readers are highly educated and highly motivated to suspend their sense of disbelief. And fiercely loyal to their favorites. Let's honor their love of books and get it right the first time. Well, it varies within sub-genres. Authenic voice operates against correct grammer.