Blondie's right. I've also had to wear name badges to most non-jw conventions I've been to. In other places, when I attended jw-conventions in Mexico and Central America, it served to ID who was really a witness. A lot of thugs take advantage of such large gatherings to pick-pocket and steal. We would be advised time and again at every oportunity to not to leave anything valuable on our seats. I for one never really mided it, it helped me to keep tabs on the sisters I liked and made a mental note to go visit that cong later.