The content itself provides a sorting mechanism.

You go to the grocery store and you can buy most things without showing ID, but you want to get booze and suddenly you need to verify your identity.

> accidentally clicks on such a piece

I’m playing devils advocate here not trying to design a better system. What’s the tradeoff of treating a single download as serious vs having a higher threshold? Perhaps a single click is reason enough to ban someone from ever teaching in public schools, perhaps you could keep a list but someone could get due process to remove themselves from the list, I don’t have a strong opinion at this point.