Suppose we talk about vehicles, and I could classify them by color (red, green, ...), or by type (cars, planes, ...)
What is a good or bad classification?
What is disturbing you? the mere topic?
We can't improve prevention of a problem without talking about the problem.
EDIT:
Note, I have added making child porn to meat space crime (even though that is obvious) specifically for you
Would you consider the "Napalm Girl" [0] to be child porn? Or evidence of the atrocities of the use of napalm in the Vietnam war? Did it eventually contribute to the end of public support for the war?