reason 10342 why nostr nip-42 auth is important
relay spiders make incredibly expensive requests constantly all day long that chew huge amounts of processing and disk access time usually for nothing
simply by requiring auth the spiders go away
it's actually mandatory for me to enable this because it really seems to me like nostr traffic has reached a point where you cannot possibly run a relay without inordinate infra unless you control access and limit it to your intended purposes