[Supermancho]

I don't see how this is about "privacy". How are you defining that?

I'm not even sure why anyone would cant to consider money exchanges "private". You want currency exchanges to be recorded for auditing, at the very least. The idea of invisible transaction causes and allows more harm than good.

Fiat barter is always an option if you want to avoid a ledger.

[markkat]

n. The quality or condition of being secluded from the presence or view of others. n. The state of being free from public attention or unsanctioned intrusion.