It doesn’t seem impossible to make similar value judgments about social media apps, but clearly it’s even harder than with chemicals.
HN ranks fairly low on the "designed to be addictive" scale, and fairly high on the utility scale. With TikTok, it's obvious that it's off the charts on the former while the latter is a very complicated value judgment.
Sure, there's some individual out there who spends 8 hours a day on HN and is completely addicted to it. But there are a much larger porportion of users on other platforms that are at that high level of addiction, because those platforms are designed to be addictive.
Scrolling apps don't want you to leave. Ever. In contrast, HN stops you from commenting if you keep doing it too fast.
Quick-access video and audio is particularly psycologically impactful.