After a conference, have you ever left your name tag on by mistake and had complete strangers say hello to you.This happened to Scott Ginsberg some years ago and he decided to keep his name tag on. He has been wearing a name tag now 24 x 7 for over ten years and turned it into his trademark.
I wore a name badge once at a talk by Theodore Zeldin at the Tate Modern in London. It was a public event and I wore the badge so other people who were attending whom I had invited but never met would recognise me. I was the only one there with a badge and was surprised at the number of strangers who said hello and started up conversations with me. So I can emphasise with Luke's experiences.
I love it in hotels, restaurants, conferences etc when people wear name tags so I can address them by name. Its just so much more friendly and makes it easier to strike up a conversation. One criticism I have of many conference organisers is that the persons name is in very small print so you cannot read it, or the badge is covered with marketing logos so the name gets lost or those name tags you hang around your neck that always twist away from you so once again you cannot read the name. The best name tags contain the name only as BIG as possible and with the given name larger and in bold compared wit the family name!!
As I love to network and talk to strange, I like the idea of always wearing a name tag much of the time though I am not so sure about 24 x 7. Do I have the courage? LOL! I am not too sure. Do you?