Stop posting art that's not yours. You aren't promoting it, you're STEALING IT. DeviantArt is supposed to be used to upload YOUR OWN ARTWORK, not anybody else's. If you want to promote it, put a link the original source, instead of inadvertently claiming it as your own.
You don't even bother to mention that it's not yours - it wouldn't make it right even if you did, but, jesus. You're taking credit for stuff you never made any effort to make. Stop it.