User blog comment:Blacknumber1/Are We the Next Great "Well" of horror writers for film and T.V.?/@comment-26054278-20150708013953/@comment-25428589-20150711151842

It's mostly because we're one, a wiki, and two, run by Wikia.

With regards to the first point, the CC BY-SA license is good for us because it is in the "spirit" of openness and freedom that wikis as a whole represent - it's approved for free cultural works while still retaining some rights for the author.

With regards to the second point, Wikia as a default has the license set to CC BY-SA.

Additionally, a many of our users want their stories to be narrated. If their stories are released under BY-NC or BY-NC-ND, many Creepypasta readers will be put off, as they will not be able to make money off of the reading and, in the case of the latter, will have to get permission first.