A butthead might say that porn addiction is less harmful as it is medically most safe and obviously the least expensive.
However, even the butthead would probably agree that sex with a young pretty girl beats sex with one's own hands -- hands down, no pun.
Of course addiction of any kind is an unfortunate thing.
I don't know if I would classify attendance of a certain number (30 or whatever) as addiction. Addiction Board in the US calls addiction a primary chronic disease of the brain. Websters defines addiction as a persistent, compulsive need of something known by the user to be harmful *AND* well defined physiological symptoms upon withdrawl.
I don't think most mongers think FKKing is harmful (other than depletion of financial resources), and I think many of us stay away from clubs for long stretches due to a variety of reasons.
