A client could do this - I could do this but making it user friendly is hard due to the nature of not really having native search (on most relays?)
Discussion
i think there’s nothing to do with other relays 🤔
just user gets all the posts from the relays he listens to and then posts not getting through filters became hidden
Yes - I was referring to search - it’s an optional NIP so not all relays implement this. Only some clients add tags saying there is an image so it’s harder to do, not impossible at all