User blog comment:Amethystkitten/GIF Requests/@comment-27794543-20160901031542/@comment-27794543-20160901062002

My understanding is that the policy was made because gif-creators feel ownership of their gif's and someone got upset when their gif was posted on wikia without permission. I don't think gif-makers have any real legal claim, but in the interest of playing nice with other fans, this wikia made the policy. Regardless, this policy hasn't been enforced in a while with 17+ tumblr gifs on this wikia plus numerous other user-uploaded gifs.