[tikhonj]

That's a great example, actually: there are regulations that prevent actively, unexpectedly harmful stuff. There are no regulations preventing stuff that tastes great, is easy to eat but not entirely healthy.

We should take the same approach to the internet: prohibit the actively harmful (malware, scams) but not "addictive" content.

[TeMPOraL]

Actually, the most addictive content would under this example get banned too - as it should be (or rather, addictive content delivery methods should be). There are no regulations preventing stuff that tastes great, but there are regulations preventing companies from adding addictive substances to the food.

[tremguy]

I think there might be some that apply to your criteria, for example at least in some European countries, sugary foods are controlled by taxation. I mean something like the idea of banning infinite scroll that someone mentioned earlier might be worth considering.