I agree with Dick about this, on the whole (though you'd need an awful lot of shrinks to examine all those heads...). I don't think there's good and bad porn, just bad porn. Porn exploits both the actors and the receivers of the stuff, and porn diminishes humanity in the same way that the cynical gambling industry and the trade in illicit drugs does. It seems to me that, often, it's the users of such outlets who seek to justify them. One of the worst aspects of porn is that it is now the chief way in which young people learn about sex, and that's a very distorted form of learning about relationships in my opinion.