Other aspects of the IFTAS surveillance scheme are outlined in the slide deck. They include centralized realtime image and video scanning utilizing Thorn's "AI". Transgressive accounts would be auto-reported to authorities. It should also be noted that Thorn technology employs Amazon's facial recognition algorithms.
As a further comment to this prospect, consider that we are now observing how the moderates currently in power in the so-called United States seem to be gift-wrapping policies (KOSA, the border wall, the criminalization of protest and homelessness) for the reactionary extremists who may well succeed them.
Technologies such as Thorn's should be evaluated in the same light. They may - or may not - only detect CSAM for now. But how will they be repurposed if there are drastic political changes in the US or other "democracies"? What beliefs, convictions, sexual or gender identities will come to be mandated as equivalently deviant? Europol already has some ideas: https://balkaninsight.com/2023/09/29/europol-sought-unlimited-data-access-in-online-child-sexual-abuse-regulation/