I think that, In Nostr, Web of Trust (WoT) is great for discovering interesting people to follow and building organic social networks, but it is NOT the right tool against spam and bots. In an ecosystem where creating bots is cheap and fast, sybils can easily infiltrate graphs.
PoW helps, but it doesn't scale well in small networks – computational cost doesn't deter dedicated bot farms.
The ideal solution? Implement NIP-42 (authentication) EVEN on free relays, with periodic challenge rotation to force reconnections and re-authentications. This adds real operational overhead for bots without blocking humans.
Security doesn't come without cost: open relays need minimal barriers. #Nostr #WoT #NIP42