I've seen several of these, the last few days:
"The image you are requesting does not exist or is no longer available."
For example, see this post.
So, searching, I found this answer to "My Stack Overflow imgur images are disappearing".
Was some sweep done through the DB, replacing all
EDIT: Apparently there is an ¿ongoing? sweep?
If so, maybe it busted some images? (I recall seeing 3 or 4, in the last 2 days. Alas, I only captured details for the last one.)
How hard would it be for a job to:
Loop through all
i.stack.imgur.comimages (or at least the ones that were auto replaced from
i.imgur.com, if possible).
If a request for the image returns
404, try fetching with an
If the image is at
i.imgur.com, restore the URL in the DB or transfer the image to the
i.stack.imgur.comdomain on the Imgur server?