Haha, it feels a little bit like this classic xkcd: https://xkcd.com/927/

I think it's not a task of a NIP to define how we're going to use existing trust attestations, explicit (38000) or implicit ("827919") or proxy (zaps+likes). This is a field where "read" algorithms will compete. Maybe a NIP could be used to define the inputs or outputs for such algorithms, but it was not my intention with NIP-77.

I would be fine if app developers in the future chose this uniform format to express trust. I also think it's useful to have a query that returns a recursive trust graph, and algorithms can do anything on this data, possibly including other data sources. The goal is to avoid the xkcd situation as much as humanly possible.

And thanks for mentioning couchsurfing! https://www.trustroots.org wants to bring his community + reputation system to nostr, I'll contact him!