Gregory Maxwell wrote:
I'm currently resisting the urge to go stabbing people.
Impacted images should now be purged from the caches. There may be a few stragglers, but there is no reason for this to be in the site notice.
I do not understand your urge. If a site feature like images, which is widely considered essential and expected to work, ceases to work, that alone is a very good reason to have something about it in the sitenotice.