Every conversation seems to demand a durable identity: an account, a username, a contact entry, or a profile that persists long after the original reason for talking has disappeared. That continuity is useful when trust and history matter, but it also makes every interaction part of a growing personal record.
A one-time communication link suggests a different default: share a narrowly scoped way to talk, then let that relationship end without adding another permanent contact relationship. PapaCall (https://papacall.me) is a useful concrete prompt for discussing that idea, without assuming anything about its implementation or making a security claim about it.
The interesting question is whether convenience has trained us to treat personal information as free infrastructure. How much identity and contact history should a routine online conversation really require?