I totally agree. Especially for "micro-interactions" between people while remaining anonymous (i.e. not needing to exchange phone numbers, email addresses etc.)

I totally agree. Especially for "micro-interactions" between people while remaining anonymous (i.e. not needing to exchange phone numbers, email addresses etc.). E.g.: - receiving appointment info at a doctor's office (in lieu of a physical appointment card) - exchanging links/addresses/numbers with strangers in any kind of conversational interaction ("call this number", "go to this address", "here's a brochure" etc.) without divulging personal identifiers Phone-to-phone, anonymous, exchange-and-forget type interactions. Can use bluetooth, wifi, or data connections (or even just qrcodes). I've always thought that there would be usefulness for something like this (key being simplicity and anonymity).