rich1.0Ronin (npub13t…twvcs)https://nostr.now/npub13thhtj384uq2dacvzjr94efgvrxdcd50geyecl8kkg6jkzd8p86sgtwvcsnjumphttps://nostr.nowMiners could help here. If they take out of band tx for spam they could take the owner tx out of band and reject the attacker tx.