User blog comment:NeonSpotlight/NeonSpotlight's anniversary AMA/@comment-22636720-20170105112755/@comment-3308937-20170105180132

Lesdin has it 100%. Our wiki specifically uses CC-BY-SA licencing:

"To grow the commons of free knowledge and free culture, all users editing or otherwise contributing to wikis that use the CC BY-SA license agree to grant broad permissions to the general public to re-distribute and re-use their contributions freely for any purpose, including commercial use, in accordance with the CC BY-SA license. Such use is allowed where attribution is given and the same freedom to re-use and re-distribute applies to any derivative works of the contributions."

A good example of someone actively taking stuff from this wiki is leaguepedia (now lol.gamepedia). They straight up exported our wiki code to make their site, there's still examples of it here and there like http://lol.gamepedia.com/Category_talk:Pet_Champion where you can a discussion between Teh, myself, and a former moderator.