Interesting discussion. I don’t know if the picture is real or fake, I was fortunate in my aviation carrier to have flown for a war bird company that at one time existed at KBLM. We flew in WWII aircraft such as B25, P40, F4U , T6 and two P51D’s. This company only allowed the aircraft to be put on static display and we would ferry them in to the different airshows up and down the east coast . The guys that put on the flying displays, followed and were watched by FAA Flight Standards Department representatives that are present at every airshow. They don’t allow anyone to make low passes over anything other than the runway. These guys make a pretty good living and I can’t image anyone putting their ticket at risk . So I’m inclined to think it’s a hoax.