Probably not the weird image I posted, which looks obviously suspicious. But maybe someone will make a program to find "cleaner" hash collisions that don't look suspicious.
Some people seem to be confused why a hash collision of a cat and a dog matters. Here's a potential attack: share (legal) NSFW pictures that are engineered to have a hash collision with CSAM to get someone else in trouble. The pictures are flagged as CSAM, and they also look suspicious to a human reviewer (maybe not enough context in the image to identify the subject's age). To show that this can be done with real NSFW pictures, here is an example, using an NSFW image from a subreddit's top posts of all time.
Probably not the weird image I posted, which looks obviously suspicious. But maybe someone will make a program to find "cleaner" hash collisions that don't look suspicious.