That depends on the author’s wish. Currently they default to Public but you can set them to Private instead. Private means that only members of a specific group, eg Mountain Hardwear members, can see them. Also, stories can be set to Unpublished while you work on them and then Published to be either Privately or Publically seen.
Each subgroup inside OutInUnder has settings and a curator. The subgroup default can be set to Public or Private based on the curators wishes. Authors can override that setting to make their story other than the group default.