Board Thread:General Discussion/@comment-31037977-20190625183526/@comment-36206809-20190630222928

Tephra wrote: BlueHeart7693 wrote: even if our pastas do also belong to the wiki, it is the author who wrote the article and it is also their property. It is property created by you that you've released under the CC-BY-SA license. When you publish your work on a wiki, you are changing its copyright status to Creative Commons. Once in the Creative Commons, you can never legally revoke that status for a stricter level of copyright. You can make it even more free, like releasing it into Public Domain, but you cannot make it less free.

Asking for permission would be a courtesy and someone who would just take your work without asking for permission is probably a bit of a jerk, but that is the full extent of it, you gave them the legal right to take it when you published it to the Creative Commons. Well defined.