I usually get some looks when I wander around with the F5.
I've had the opposite reaction it seems with TLR's. I've never had a second glance using my Mamiya C330, and nobody has ever asked me about it. Maybe it's just this city, the weirder something is the harder people try to ignore you. With the plastic SLR though I felt I was in the gear game again. Like other SLR/DSLR shooters were checking it out to either scoff at or envy the gear, depending on which lens I had attached.
A Leica M or Canon P looks just like a Fuji x100 so nobody pays much attention.
Now an RB67 gets comments.
I've been shooting with SLR's for more than forty years, and they haven't "put me on the map" yet.
In my experience trying to photograph trains, big SLRs and lenses are almost guaranteed to bring out the LEOs - law enforcement officers...Barney Fife types, only less intelligent. Nobody cares if I have a Rollie or small rangefinder.
I have only notice odd looks when out with my view camera. I pulled my head out from under the focusing cloth only to see traffic backing up while rubberneckers watched to see what I was doing at the local park last summer. I was well off the right of way on a bridge shooting a landscape.
Same here-I've had a few ITAMs as well:D
If you want to be "on the radar", make a cell phone call, or use the internet, or take money out of you bank account. Big Brother is watching.