mikedilger on Nostr: When a note refers to a person (p-tag) or event (e-tag) there is a second parameter ...

When a note refers to a person (p-tag) or event (e-tag) there is a second parameter (3rd string in the array) that is the recommended relay where clients might be able to find that person or event. It's optional, and data is unreliable (that relay may die, have deleted it, be captured by the government, the author can lie, or whatever), but it is helpful when it works. Otherwise oftentimes the person/event cannot be found because we don't all use the same relays. I think having these in the tags that refer to other things is the right place, so I don't think there's any use in adding more relay pointers to events outside of these tags.