Forum:Copying content from one wiki to another

I know this might be a dumb question, but anyways:

I've searched over the site a bit for how copying content works and the general response was that, anything that is not copyrighted can be copied but must be given attribution to in a link/etc.

But what if the wiki who copied it did not give attribution to the other while doing so? Could you go in there (in images for example, or in a small note on the bottom of a page), and put it yourself, even though you were not the one who copied? Yechnagoth 07:26, December 19, 2011 (UTC)