1) If it is a diagnosed addiction, then they need help from an expert in mental health.
2) I would say so. po*n is just a fantasy. Just like women fantasize about Prince Charming or Edward Cullen.
3) Yes.
4) No, in moderation it is a healthy medium of sexual enjoyment. The couple can enjoy po*n together as well.
5) That is not true. Love, companionship, commitment, trust, emotional intimacy all enhance sexual pleasure. All humans have a mental image of the ideal bodied man or woman, not just those who view po*n. But the ideal body is not necessary for pleasure.
6) Both men and women should try and please their partners, but if something is too uncomfortable they should say no and respect it when the other says no. po*n is not a factor really, people get ideas from books, from talking to friends, personal fantasy or po*n. Sometimes it is something both partners agree to and enjoy. Sometimes it is left as just a fantasy.
7) There is no right or wrong, it is a matter of personal taste.