Can you please explain what's privacy-preserving about having to reveal IP addresses to a centralised mint every single transaction... while still being able to get rugged for 100% of the value.
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The payer doesn't have a mint interaction while paying, so as the payer, you're not talking to the mint for each transaction.
You can use VPNs or Tor if you want to hide your IP.
We're also integrating OHTTP into the Cashu protocol:

GitHub
feat: ohttp mint by thesimplekid · Pull Request #286 · cashubtc/nuts
For the payer to receive the e-cash in the first place, they must expose their IP to the same mint that the payee uses to redeem the e-cash.
Using Tor or a VPN does very little to obfuscate actors with a whole network topography view.
I always wonder why but looks like people are ready to trust all their data and money to one guy in a garage for privacy 👀🤔