Ecash hides your ip address
Regular lightning network exposes your ip address
Privacy problem solved
Discussion
Is it true that our IP is not seen by mint without Tor?
If you use tor your ip is never exposed
Ecash itself doesn't hide your ip address. It's not exposed because you're using it over Tor. You can use lightning over Tor too.
Ecash privacy comes from using blinded signatures to break the link between creation and redemption
https://docs.cashu.space/faq#general-safety-and-privacy-questions