Imgur has already started doing it, just not all the way. They redirect direct image links to the framed version of the image, and they have a growing blacklist

Imgur has already started doing it, just not all the way. They redirect direct image links to the framed version of the image, and they have a growing blacklist of sites that aren't allowed to embed images, including ebay, codepen [1], and probably others. [1] https://twitter.com/codepen/status/662641042647326720 https://twitter.com/codepen/status/662641042647326720