The infamous "Concealed Carry Badge". I "LOL" at the thought of it. I haven't seen any bad stories from people who wear them, like getting charged with impersonation an officer. Although, different locations may have different restrictions, if any, on wearing stuff like that. I would think it would be protected under the 1st amendment, though. As far as I know, there are no statutes against wearing something like a "concealed carry badge" in SC.
I wouldn't wear one, ever. If for some reason I would, the ONLY reason would be to announce to others I am armed, as I believe in the deterrence factor of letting people know I am armed. That's only because SC has strict restrictions on open carry (open carry in public is literally non-existent). I would rather open carry loaded mags in mag holders and wear gun 2nd amendment related shirts than "the badge". In my mind, the badge seems more like something to mark yourself as an elitist more than anything else. Just my opinion. Some other people's intentions for wearing that kind of badge may not so asshat like.