The whole idea is a privacy minefield, so it would have to be very carefully designed and implemented, of course making it opt-in. But still, should we even pursue this idea?
So that, for example, even if I met someone just briefly, they can still later see the contact information that I am willing to provide.
Wouldn’t that make it much easier to connect with people who live close to you?
Are there any relevant projects or ideas that already exist?
Even if it is opt-in, I personally would absolutely not trust it.
Who’s to say there wouldn’t be a glitch in an update that causes your location to leak and some wannabe serial killer doesn’t come and try to kill you?