[BorisMelnik]

As a father this horrifies me. If this were my site, hobby or not I would spend a great deal of time implementing a system to report to the authorities. Just imagine if you did manage to help/save just one kid how good that would feel.

The PhotoDNA API looks absolutely brilliant. That is one reason why I love Bill Gates he always (or a lot of the time) gets involved with projects that truly help people.

Don't think of it as a problem, it is an opportunity to help a child or a parent that may not know a relative, teacher, or stranger is hurting their child.

Many times these crimes are committed by loved ones and the children are not abducted, they are lured / tricked by people near and dear to them.

[Houshalter]

In all likelihood the photos are just stuff people copied from around the internet and not from the original abusers.

[mirimir]

Yes. Based on what I've read, abusers typically trade with other abusers in more private ways.

[DasIch]

So you catch these guys and follow the trail from there. Just because you don't reach your goal with your first step doesn't mean that it's not worth making that step at all.

[linkregister]

What are you attempting to say, that the images shouldn't be filtered because they aren't from the original source?

[Joeri]

I think the implication was that the uploaded are not the perpetrators, so reporting them is unlikely to reduce abuse. I'm not sure I buy that line of thinking. I suspect plenty of perpetrators upload in public forums.

[BorisMelnik]

very true, but there is still the possibility that it was copied recently and the authorities are not aware of the source. even more reason to report these people so that the authorities can reduce the amount of "hops" to find the origin.