None of us has a problem with open carry in itself, ( I'm assuming that Greywolf simply prefers not to because he has other options. I don't think he would quit carrying if the law said every one must carry openly, or if it were a common fashion )
The thing that makes this guy a jerk is his reason for doing so, which was to attract attention and create an issue where none existed.
The same holds true with carrying a gun at all.
If your reason is some form of "I'm in a better position to protect me than any Cop in the world" fine, but if you reason is "so I can kill dirt bags" then not only should you not carry , you probably shouldn't be allowed to own a gun at all.