Hi. Newbie here.
Interesting post. Myself, I'm a rather large, burly red headed guy and have never felt, or been, 'made'.
I typically dress in Hawaiian shirts, cargo shorts and sandals alot and probably appear semi-crazy looking anyway (which is why I'd never open carry), but I'm as nice as nice can be.
It is an advantage to look a little confrontational while on the streets. If I were not like I am I would definitely have to work on some type of image revision because I firmly believe that most BGs think if you look like an easy target, then you probably are, hence vice versa...