[neutered_knot]

I’m not advocating widespread filtering in this answer.

This article is essentially referring only to edge cases which require context to determine if images are CSAM. There are other cases where context is not needed and determining if something is CSAM is sadly easy.

For example, there is no appropriate context for images or videos of adults raping toddlers or infants.

[viraptor]

Do you know the actual volume of those cases though? As far as I know lots of groups exchanging the photos are mainly dealing with photos from semi-public spaces. The actual rape images are extremely rare. (There was a post about it on HN years ago, but I can't find it)

[neutered_knot]

I am tertiarily involved in some efforts to prosecute offenders in this area. I am not of aware what volume of traffic online would be these images, but am aware of some material in cases where people are caught and prosecuted. My understanding is that in actual prosecutions such images and videos are quite common.

[hju22_-3]

Not to mention, at least where I live, it'd be illegal to train a model on actual, real media representing such cases that would let the model have a greater confidence rating in contextualizing which are or aren't actual child pornography. And I somehow doubt we'd get a good filter either way.