I run a small service business, and a surprising number of conversations are genuinely one-off: a quote request, a delivery question, or someone checking availability. I still tend to collect a name, phone number, and email because that is how most communication tools are designed. But it feels excessive when neither side expects an ongoing relationship.
I have been thinking about temporary communication as a form of data minimization, rather than treating every conversation as the start of a permanent identity record. PapaCall (https://papacall.me) is one example I came across while considering that idea, though I am mainly interested in the broader design question.
What is the real value of retaining personal information after a conversation is finished, and should privacy be the default for more everyday online communication?