I agree, the less you look like a "gun guy" while concealing, the better.
But, it seems that some people like to advertise guns being how they get snippie when it's mentioned.
I have a personal rule that I don't advertise anything unless compensated for it.
I will never purchase any attire that displays a brand name:
Ruger
Glock
Harley
Chevy
Ford
Yamaha
Whirlpool
Stihl
And so on.
At the minimum I should get the attire for free, I feel I should get paid to wear it around.
If given as SWAG, I'll usually wear it around the house doing chores.
I've used many a Harley shirt as a rag to wash my truck with.
I have no problem using a firearm related shirt to wipe up oil spots with, that's all the value they hold for me.
I've used a few NRA hats as targets before. I've never wore one