I still had close to a thousand photos up. The income was minimal but inertia is a thing. Until now there was never a reason to delete.
No way to delete all the photos at once, and I'm about a third of the way through.
They seem to be adding deliberate delay to the process after selecting delete, and the website is set up that for each image the delete button if offscreen and you have to scroll down to it, no matter the zoom selected.
Seems legit.