Dear Professor Lajeunesse,
I've just read about your conclusion that porn is harmless. I'm wondering if it might be worth redesigning your questionnaire. I've been witnessing (secondhand) a lot of harm from porn, as well as some surprising benefits from leaving it behind. What I'm learning suggests that you would have to ask very different questions of your subjects if you want to measure the dangers of Internet porn use.
It does not surprise me that the immediate risk to third parties from porn users is minimal. I'm more concerned about the risk to the users themselves.
I have a unique perspective because my website tends to attract a lot of men who are hooked on porn and desperate to stop. (For why, see Unexpected Lessons from Porn Users.) When they do manage to unhookâ

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