It used to be that articles on the "dangers" from pornography and the inevitable masturbation were mostly parodies of old wives tales: acne, blindness, infertility, and, of course, hair growing on the palms of the hands. All of those have been tested and found wanting by real science but the never ending quest to control human sexuality marches on. If hairy palms and blindness are not enough then lets scare you all with threats of elevated dopamine levels in the brain.
On the bright side, this offers a solution to the "problem" of Western Civilization being swept away by faster breeding cultures. Give them all free Internet access and lifetime accounts on roughsex.com.