We are the archivers now. Attestations provide WoT for events; in this case web archives.

NostrHub

NostrHub | Discover and Publish NIPs

Explore official NIPs and publish your own custom NIPs on NostrHub.

Well yes, that's their whole service though. They are used because people trust them. We need to provide at least as much confidence as them.

There's no reason a service(s) couldn't coexist alongside or within a network of individuals. Said services could even recruit contributors from the wider network, or make a service out of "verifying" and storing network events that they deem "accurate", on their own relays. The 2 things would help create accountability for both.