I remember at the time getting really annoyed with people who complained about how Gerry and Kate didn't seem upset enough. To me they looked like utterly broken and terrified people trying desperately to hold it together enough to drive people to keep looking and caring. And they are doctors, who have more experience than most of remaining outwardly calm and functioning in the face of overwhelming pressure. Ds1 was a baby at the time and I remember feeding him watching the TV news and aching to reach through the screen and hug them both.
More on the subject of this thread, I think there are many people who have no idea- and tbh why should they?- of the extent of organised CSE and the work done all the time to try to track down the perpetrators. I look at the europol site often, knowing the chances of me ever recognising anything are virtually zero... but there is always a chance. It might seem like nothing but if someone can say "that object is a can of dry shampoo and the design on the bottle is the one X brand sold in Eastern Europin the early 90s" for example, that could be the piece of information needed for the police to pinpoint an abuse image to an area, a vague date, even an individual. It must be worth trying.