Strong NACK on nostr. It's a badly designed, centralized, protocol that needs a significant redesign to be usable. While off topic for this mailing list, some of its many issues include:

• Reliance on single-key, cryptography that often results in people having their keys compromised. This is a serious problem in the context of bitcoin-dev, where faked messages published could easily have market-moving results.
• Inability to mirror relays: since nostr deliberately ignores the lessons of blockchains, there is no way to be sure that you have a complete set of messages from a given person, for a given topic, etc.
• Highly centralized design: since mirroring relays isn't reliable, in reality nostr operates in a highly centralized fashion, dependent on a tiny number of relays that can't be easily replaced if taken down.