Mall ninjas are everywhere now. Law enforcement, military, paintball and airsoft fields, shooting ranges, rent-a-cops, your gun forums, etc. Simply having a career where "tactical" tools can be a necessity doesn't negate the mall ninja effect.
It's characterized by a penchant for all things black and tactical. It's the guy with who won't go anywhere without three hi cap mags. The guy who is deluded into believing that his M4 copy is somehow more powerful and more effective than other sporting rifles because "the military uses it" or "it's mil-spec", never mind the ballistics.
You could offer a mall ninja two guns, both the same model, one stocked in a traditional wood stock, the other in black plastic with a pistol grip, and he will ALWAYS choose the black plastic model. In the world of the mall ninja, if it isn't a Glock, Sig, HK, or other hi-cap pistol composed of black plastic then it "isn't practical" or is "an inferior choice" or is "outdated".
I have no doubt that the current tactical craze was funded more by mall ninjas than by people actually using this gear for it's intended purpose on a daily basis. Most of it isn't worth the polymer it's formed from.
Pistol grip shotguns, funny attachments tacked on the end of barrels, ridiculous lasers, lights, and don't forget ten or more feet of picatinny rail to hold all that.
More than anything, Mall Ninja is the excessive accessorizing with unblemished military gear and gadgets and thinking that somehow you have an advantage over the guy with the crusty old Model 10 and grandpa's dinged up 1897. Try as you might to explain it all, they never realize that nothing could be further from the truth.
I've seen this mindset in action too many times over the past few years. It's a bad combination of ignorance and gearheadedness that renders it's supporters the butt of many funny jokes, both face to face, and behind their backs. In a way, it's provided me with much humor, so maybe it ain't all bad.