I'm so glad I saw this. I've been reading up on cashu for a short while now and was considering giving it a go.
this is the thing that always made me cringe about ecash forever and i only really crystallized the insight today, thanks to nostr:npub1mhcr4j594hsrnen594d7700n2t03n8gdx83zhxzculk6sh9nhwlq7uc226
the ins and outs of a cashu or other ecash mint are inherently revealed to the mint via IP addresses, you can only have proper ecash anonymity with the use of an anonymising proxy
Discussion
i mean, it's private, in the same way as #nostr DMs are private... between you, the intermediary, and the counterparty
Still... not a risk I feel like taking. It's seems private, but not anonymous.
yeah, as soon as it became clear to me understanding it, now i understand how it can be defended
for ecash, this means being able to exchange tokens to randos without risk of being rugged, and i think the ecash scheme allows this, but nobody so far has pointed out or talked about the need for this change mixing, even though it's intuitive
coins are fungible, but messages are not, so messages can't benefit from this, but ecash can
the ecash promoters need to get some cans of whoop ass for making their claims of anonymity over this
and build fucking change exchanges, this is totally doable
also, change exchanges have a problem of you can't exchange change without correlating the fucking issuer