Comment by superkuh
Gambling disorder was introduced in DSM 3 (1980) before much was known about human neurobiology under 'impulse control disorder not elsewhere classified'. Back then they even thought dopamine was a 'pleasure' chemical. And we now know it's about wanting, not liking. You may be mixing it up when it was reclassified as the DSM 4 (not 5!) did a big reorganization.
Kent Berridges' lab review articles are a great place to start to understand addiction, wanting, and liking and how they are different. But mostly importantly, how addiction works so you can see how chemical addictive substances are vastly different. https://sites.lsa.umich.edu/berridge-lab/selected-review-art...
Edit: and re: "porn disorder/gaming disorder/behavioral impulse disorders to 'screens' in general" and the behavior of the ICD re: china, see the widely cited Nichole Prause' work https://scholar.google.com/citations?user=yySl87AAAAAJ&hl=en
I don't follow. DSM-5 (2013) moved gambling into 'Substance-Related and Addictive Disorders.' What specifically are you saying happened in DSM-4?
Thanks for sharing. I'll read Berridge.
The distinction you're drawing is mechanistic. I'm not submitting a paper to a journal. Kids are scrolling until 3am, teen mental health is cratering, boomers are getting radicalized by bot farms, and democracy is being sold for pennies on the dollar. If your response is 'technically not addiction,' we're not having the same conversation.