In the beginning, pop culture wiki TV Tropes licensed its content with the Creative Commons Attribution-Share Alike license for free content.
When Google pulled out its AdSense revenue because of... let's call it NSFW fan fiction, TV Tropes changed its guidelines to forbid tropes about mature content. In response to this move, two forks were eventually created. The admins disliked this move so much that they changed its license notice to the Attribution-Noncommercial-ShareAlike version, despite their site not having requested copyright rights from their users. Only later they added a clause to their Terms of use page requiring all contributors to grant the site irrevocable, exclusive ownership of their edits.
I suppose the morale of the story is, if you contributed to TV Tropes before summer 2012, you should know they're distributing your content under a license that you didn't give them permission to use.
(Score: 2) by tangomargarine on Friday May 16 2014, @04:01PM
I'm a bit surprised to hear about them censoring "mature content" since I was just reading the HHHHHHHHHHHHHHHHHHHHHHHHHHHHHH page [tvtropes.org] last week.
Which also raises the question whether such a thing can be called "mature"...it sounds unspeakably gruesome but juvenile vs. "mature"...
"Is that really true?" "I just spent the last hour telling you to think for yourself! Didn't you hear anything I said?"