[jron]

Unlike web scraping where spaghetti logic is required to follow abstracted JS links, archival of nostr events can be as simple as running a relay and mirroring blog content.[1][2] nostr does a lot of what NNTP did but with additional flexibility.

[1] https://logperiodic.com/rbsr.html#nostr

[2] https://github.com/hoytech/strfry/blob/master/docs/negentrop...

[troupo]

For that you will need to connect to all relays in existence, right?

[dtonon]

Not necessarily, the gossip/outbox model (NIP-65) tells clients which relays they should check:

https://mikedilger.com/gossip-model/

It is of course possible to combine this approach with undifferentiated access to well known relays, to fetch content from not followed people.

[jron]

Users currently tend to push events to massive relays but decentralization is still a goal:

https://raw.githack.com/dtonon/oracolo/master/examples/fiatj...

https://github.com/nostr-protocol/nips/blob/master/65.md

Still, the short answer to your question would be "yes."