I suppose the platform requires a fully enforced (not just a lip service) "acceptable use" agreement for participation, whereby if you are found to be in breach of such policy, your details are handed to police. The technology, and skillsets are all there, but it all comes at a cost, not least to our already over-stretched police force. It would also set off the big brother fear groups. But even if the internet gets more policed, the underlying issues are still there, and these people will only find other ways to abuse others.

Hope they get their comeuppance.

Edit: Just seen Andy's last response, bit of duplication!