Comment by crazypython

Hey, my game will be in a similar situation. I'm looking into building a CAPTCHA that works by taking submissions from r/notinteresting, r/mildlyinteresting, and r/interestingasfuck, and asking the user to take an image and classify the image into not interesting, mildly interesting, and very interesting. We can distort, crop, and recolor the image to defeat reverse image search. That should be enough of a stopgap to stop them. Contact me via email (in my profile page) if you want to work together on that project.