Out of curiosity, I've decided to reverse image search my artwork to see if anybody had re-posted it somewhere else. Sure enough, I found my artwork on an app called R34. I even tried reverse image search on a few of my works that don't appear on here from furaffinity.net and I found either no matches or something that is related to my searched image in question. I was wondering; does e621 automatically post to the a fore mentioned app or do I need to be concerned? If e621 does not automatically upload to these or other like apps, what can I do to stop it and reverse whatever damages that have been done? Thank you in advance for your suggestions and co-operation.