I worked a both for Oregon Firearms Federation last weekend at a Baptist Church Sportsman show and there were many people carrying open and concealed. Like Solus I felt at home and I also choose to carry concealed. Oregon is a pretty blue state but very firearms friendly, due much in part to the efforts of OFF, but open carry is still not a cultural norm.
Maybe we could treat them like tattoos, a social filter. If you don't like it your welcome to not participate.