hedwards: No, I didn't use any logical fallacy, but you sure did. Unless you can demonstrate that there aren't any, not even one, person who has ruined their life in that fashion and recognizes it. Which of course you can't, because you're relying upon a tired and flawed line of reasoning.
Aliasalpha: No, the point is that those are PSYCHOLOGICAL addictions. Psychological addictions can be to any stimulus, the stimulus in question is perfectly ordinary to most people but to people with this particular mental oddity, they become the focus of an obssessive compulsion that bears the hallmarks of a physiological addiction.
The stimulus in question is blameless because the addictive compulsion comes from within rather than without. If games were ACTUALLY PHYSIOLOGICALLY addictive, there would be massive amounts of people addicted to them in the same way there is to tobacco. There aren't because all the games are is a stimulus that people with a psychological predilection towards addiction may become unhealthily attached to.
In this case, the problem is in the processor, not in the input and anyone who jumps to the conclusion that the input is at fault for processor problems needs a good kick in the head and a long lecture about what constitutes valid scientific data.
Also, the last fucking thing I'd do is take the piss out of people with mental illnesses since I've got one myself. I get quite enough crap from vapid shitbags who are confident that the cure to my crippling depression is to "just smile some more".
I'm not aware of any credible therapist or psychotherapist that considers the difference between physical and psychological addiction to be of any meaningful importance. Dependency issues are diagnosed by behaviors and effects, not through tests, and with good reason. Probably the worst addiction of them all OCD doesn't have any obvious physical component until you start looking at the brain.
You're apparently lucky enough not to have to deal with addiction. I don't personally think it's right to denigrate those that have without good reason.
Ultimately, addiction is relatively simple. If you can't stop doing something that's destroying your life, you know that it's destroying your life, you can't stop doing it without getting sick, then you may have an addiction on your hands. Differentiating between physical and psychological addiction is in my experience frequently used by people wanting to rationalize their own pot use. I'm sure there are others that use that flawed line of reasoning, but I don't usually come across them.