Detect and offer to hide viral images

[Sjmarf]

I'm thinking of situations like the Musk salute where one photo dominates the entire feed for several days. We could use an image comparison algorithm to detect when this happens. When you've seen the same image n times, we could add a banner under the post that reads something like:

"You've seen this image several times. Hide posts with this image?"

There could be options to hide forever, or just for one week.