It is not as personalised as Facebook, Tiktok or Instagram.

Problem is when a machine learning algorithm is designed to find content that has highest odds of keeping you engaged forever and diminishing your dopamine reserves as it is doing so.

Hackernews can have issues, but by far not as much.

Also having text only limits the ability to create such addicting content by far.

Finally Hackernews doesn't play on your insecurities as much.