Someone has to do it and these guys were always free to quit if they couldn’t. Even on FR, we had incidents of childporn.
Only other option is to expand government and have law enforcement embedded in every internet company as moderators. And you know where that leads...
Even hardened officers that work on these cases get seriously messed up
I worked a case on a pedophile priest and I asked the case agent how he dealt with that. He said his rationalization was that most of his cases (federal) were looking at a minimum of 20 years. The priest was in his sixties. The day he was arrested was the last day he will spend outside of prison.