@amit @JohnPhilpin As I said, I would be surprised. And given that I forgot (again) about the Facebook Effect, I am surprised by the things people do in WhatsApp... although my guess is that people also do that with iMessage.

I certainly don't think their needs are less. I've just forgotten that I am not in that world as much as I used to be; it can be difficult to remember which world you're in, especially when you're an unpaid and unemployed enthusiast surrounded by people who are very much not that.