Note this is not a question about using copyrighted material I do not own. It's about materials I own and have all rights to.
A question on GraphicDesign.SE has spurred some comments regarding image licensing.
See the comments HERE
I posted a copyrighted image which I own. I am the sole copyright holder. All image rights are mine.
A user commented that as soon as I upload the image it is attributed a Creative Commons license and anyone can use the image provided they credit the author.
It is my understanding that uploading an image grants SE the right to use the image. It does not however grant everyone the rights to use an image, with or without attribution. Others can, in context, use the contents of my SE post under Creative Commons licensing with attribution. However others can't merely grab an image, or a cherry-picked piece of my answer/post, and reuse it for any purpose they desire. In this case, a rudimentary logo mockup.
I've reviewed the copyright policies, but they are more directed and the uploading of unauthorized material, not about unintentional distribution of copyrighted materials.
Now, I'm not an idiot. I know if I never want an image stolen I should never post it on the internet, anywhere. I posted the image. I'm aware it will most likely be "lifted" at some point. But, that does not mean I wish to relinquish all rights to the image, or to immediately attribute a Creative Common license to my image in itself.
Is there definitive information on SE's position regarding content which is copyrighted and legally uploaded? What license, if any, is attributed to uploaded content beyond the license granted to SE?