There's a difference between "not getting" something and deliberately avoiding it because of huge negative effects
So many comments on here saying "It's just short form YouTube" - did you read my blog post? It's literally the opposite. That's why the clones of TikTok don't work
The audience of this post wasn't potential users of TikTok, it was for people who make software in various capacities.
I would say the same about someone watching that much TV, and do think the same of myself when I used to play video games that much. It's pleasurable and feels good, but for long term mental health (not to mention physical) it's catastrophic.
I'm not talking about hopping on and watching 15 mins of tik tok in the evening, but that's not how it's usually consumed