There is NUT-11, pay to public key. That will let you lock tokens to public keys, so that there is no reason for obfuscation anymore.
E.g., a person posts a #Cashu token in a note but doesn't want anyone else to see it unless they have the password for that note
... or are there other ways to protect against the discoverability of Cashu tokens?
nostr:npub12rv5lskctqxxs2c8rf2zlzc7xx3qpvzs3w4etgemauy9thegr43sf485vg
nostr:npub1mhcr4j594hsrnen594d7700n2t03n8gdx83zhxzculk6sh9nhwlq7uc226