Themselves? No. Other people and communities that they dislike? You bet. Just look at political memes. What is the chance that both sides will have a few p

Themselves? No. Other people and communities that they dislike? You bet. Just look at political memes. What is the chance that both sides will have a few people try to create memes for their opponents which are adversarial. They'll take care to make sure those images aren't on their own apple devices before spreading it to areas where the other side likes to share memes. Another example are the very people trying to be caught. Someone who is against current laws about the subject might seek to create as many false positives as possible to overwhelm the system. They might even specifically target otherwise legal baby photos to manipulate in this way as it would make it more likely they get past any sort of second tier manual review and result in law enforcement wasting resources. Lastly, this is nothing new. Planting such material and flooding websites with it has long been a tactic used by some. Up until now it has been limited because doing so requires violating the law yourself and few people hate others enough to go through that level risk to self. But this is mostly risk free because creating adversarial images like this isn't outright illegal and even in cases where there are laws against it violating those laws is extremely different than violating actual laws against CSAM in every way that factors into a person's willingness to break laws.