> Addictive stuff is bad if taking it has other negative effects. I get your point, but I think it's a bit oversimplified. I think that addiction itself can ca

> Addictive stuff is bad if taking it has other negative effects. I get your point, but I think it's a bit oversimplified. I think that addiction itself can cause problems, even if it's just distress from feeling a lack of control. I've had several people tell me that caffeine addiction is no big deal if you're getting it from mostly healthy or neutral sources, but I remember being addicted to caffeine for sleep/attention regulation and for me that dependence was stressful on its own. Another example might be porn addiction, which is well-known to have negative effects due directly to the dependence on certain stimuli to achieve certain mental/physical states.