User blog comment:DoctorBleed/Question about publishing rights/@comment-25148755-20170227115620

CC-BY-SA means folks can do basically whatever they want with your story, so long as they give you credit. CC-BY-NC means they cannot use it for commercial purposes without asking you first. So I'd recommend changing it to that which should (legally anyway) give you sole right to publishing your work while still allowing it to stay on the site.