Board Thread:Support Requests - Community Management/@comment-3235402-20130404181023/@comment-5028213-20130404235909

All true, but besides the point, if you ask me. And even if I owned the whole copyright for a piece of work, hiding its CC-BY-SA would still be copyfraud.

@OP: There can't be anything done about those wikis, as long as they abide by the license. That's how free licenses work.

Also, if you speak of "elements" being taken, note that ideas are not copyrightable. This is why we have other platformer video games besides Super Mario.