gustavo on Nostr: I have noticed a general trend among kids to prefer apps with more extremely ...

I have noticed a general trend among kids to prefer apps with more extremely ephemeral content -- like pictures that disappear fast. In chat apps, there are also temporary messages.
While we know that once something is on the internet, we cannot guarantee it will be deleted, closed platforms with closed source apps can for sure mimic that kind of scarcity.

How can we replicate that behavior in a decentralized protocol?