https://www.techdirt.com/articles/20181218/16150941264/filters-suck-out-loud-tumblrs-porn-filters-flag-tumblrs-examples-allowed-content.shtml > As you'll recall, Tumblr recently decided to go the Puritan route with its platform, announcing that it would begin filtering "porn" from its platform. As we pointed out, this was bound to go hilariously wrong, with plenty of innocent content getting swept up in the auto-filters. There were already examples of this, ranging from pictures of cartoons to what looks to be accidental photos people took on their couches. You may have thought at that time that no better example could be found for how dumb auto-filters like this tend to behave. > But Tumblr itself accidentally just provided such an example. Seeking to clarify what is and is not allowed, Tumblr posted a GIF of the kinds of images that would be allowed on the site: artwork, educational material, etc. It all went swimmingly... until others tried to post the exact same GIF to see what would happen.