Some tumblr image links (such as the ones in the source field for post #3807519, post #3832027, and post #3961215) have a redirect to the tumblr post. It seems to not show up on tumblr posts older than March 2015, as the oldest example of this I could find with a cursory search is post #2307153, but that's just a guess. Anyways, would it be possible to use this to automate more bad link correction (or do it manually, worst case scenario)?