The "worst" ive seen was a guy cumming on the face of a ~8 year old girl..
But yes theres sometimes cp in dropboxes.
But sometimes you see some good unknown amateur porn or so
i think thats not as bad as raping a 7 year old..
And if it isnt a snuff movie (with kids or or so), i think theres nothing worse then cp.
And yes, in normal life i hate kids, but cp is a different thing..