I could see the value of an organized, open-carry demonstration, but random open-carry as a statement, doesn't do anyone any good.
For the armed individual, open carry is a shoot-me-first indicator, and someone who isn't a threat might feel threatened, so what's the point?
Agreed. A march/protest works for me.
Utilizing OC in the country or when sporting works for me.
The random "dude" wandering around daring a confrontation to me is the same thing as left coast treehuggers daring someone to arrest them.
EDIT: I guess I view OC like PDAs. Both are rights. Both are best kept private.