I like certain kinds of porn a lot. I have huge collections of them.
But I find the term "addiction" thrown around much too easily. If the interest was anything else other than sex related, say stamp collecting, gardening, 魚 rearing, painting, etc. would anyone suggest that a person is addicted to it? Chess masters spend most of their waking hours thinking about chess. Are they addicted? Many young people listen to 音楽 whenever they can. Are they addicted?