Nah, don't be obtuse. There are plenty of acceptable forms of evidence of this that don't involve literally presenting CP. I would happily accept an indictment of an involved person, an official statement from a law enforcement agency that it's going on and being investigated, an admission by a reddit employee that they've been made aware of it and are "taking action," a confession by a perpetrator, and so on.
I don't need to see video footage of Jeffrey Dahmer bludgeoning someone to death with a 10 pound dumbbell to accept it as true because other proof exists, like his confession, a coroner's report, forensic evidence connecting him to the crime, and expert testimony during his trial and subsequent conviction.