Ahh you can do that on an app by app basis?

Yeah, so we need a nip to introduce expiry dates. Maybe it already exists, and then a client that makes it the core feature.

What do you envision. Typically you share something and people stop looking at it as it dissapears over time. This is natural on Nostr. Instagram has an advantage of providing access control: only certain people can see it. That gives the time element a bit more exclusivisity. Also, since crypto...