The difference between REMFers and real warriors is knowing when detail matters and when it doesn't. The promotion boards never seem to be out where the shooting is going on, if you recall Bill Mauldin's cartoons about "that guy who put the orders out" and "one set of noncoms for combat, and one for town," they seem highly apropos here.
In the context, it is irrelevant, and it's certainly not worth being as obnoxious over as you apparently have felt called upon to be.
And it's even less relevant whether it's a half century or a little bit more since my father in law got blown up on Iwo. Not that he would care about your two-bit insults, but I care about his memory.
Grow some thicker skin, sweetheart.
BTW, a rifle isn't a gun.