Of the sh!tshow that ATS has become, I've found a small saving grace for those who want to save their old images.
Warning: The only caveat... you must still be signed in to the old account
Premise:
We know that if you are still logged in to your old account you can still browse the forum and see your profile, statistics, etc.
What we can't do is access our image galleries via the upload feature (authorization error).
Also, we can't start a new thread, BUT, we can still prepare a reply, and it's this that we can take advantage of.
So, here's how we proceed:
1) Find any post in any thread you like or dislike;
2) Click the reply bubble;
3) Click the last icon in the row of editing tools above the editor.
4) A popup window appears with all your lovely, long-lost images. Note: they are only tiny thumbnails, so not worth left-clicking to save.
5) Select what you desire and you will see the BBCode tags and image ID appear in the editor;
6) Press preview under the editor and hey presto, there are your full size image.
At this point right click (tap and hold on mobile) to save the image.
If you are on a mobile device, you will have to switch your browser to Desktop mode to see the preview button.
Obviously, you can add as many images to the fake reply, preview and save them all out in a matter of minutes.
Again, I'm sorry this doesn't work if you are locked out of the old account. I can't figure out a hack for that.
However, in that case, a more lethargic method is to find your old posts (if you can remember where you posted them) and save the images directly from
the posts, so not all is lost.
God save the old ATS.