> Attendee? What year is it in your world? Perhaps you're unaware that most public talks take place at conferences, which yes, still have attendees. > (Also,

> Attendee? What year is it in your world? Perhaps you're unaware that most public talks take place at conferences, which yes, still have attendees. > (Also, time-limited is stupid for this case.) Time-limited is perfectly fine policy for some cases. Maybe you have a different case in mind, but that wasn't specified in your scenario. > This isn't an edge case - people pass out addresses expecting to be contacted by randoms all the time. And? If you want to open yourself to a flood of possible spam, then create an address just for that and publish it. Nobody's stopping you. > And, most contacts are second-order or further, so introductions aren't even possible because there's no common link What does "second order" even mean if not "someone I know knows them"? There's nothing stopping the use of public addresses, the point of the proposal is that most people don't need it, and the default public nature of email is what creates the security and spam nightmare that it is.