When the shooting starts, no one is going to go to the time and trouble of 'doxxing' you on the internet. If you're not wearing the right colors or insignia, it'll be 'shoot first and ask questions later.'
One of the reasons I practice Conceal Carry in a open carry state. If I have to go on the Navy base, our local gun shop has a free check in.
Places I hate are doctor’s offices every dratted one has a NO gun sign up, some are not official signs, and that means they are required to have an armed guard, which they don’t.