I think it can be a positive tool if a person is sincere about it. I have a friend whose wardrobe is quite literally made up of Jesus "fan wear", including hats. However, on him this doesn't bother me because he is very sincere about his faith and wearing his "Jesus-gear" is truly an extension of his personality. On other people, I don't know. I'm personally not conformtable with it except on this one person thus far ...