It seems Disneyland has slacked on enforcing flash photography during the rides, I remember as a kid they would actually take your camera.
Back in the early 80's I was riding POTC and I happened to get seated with a boat full of Japanese tourist. They were having a blast taking pictures like mad before the ride actually started and several cast members mentioned to them about the Flash policy.
Anyway, once the ride started one guy whipped out what looked like a professional camera and started lighting up the place, rapid fire and going nuts with it. My sister and I dropped our jaws and stared at each other because we thought it was like taboo to do such a thing. We never thought about this ruining the ride, it was just fodder that Disney was so "Top Secret" about everything and didn't want people stealing their ideas.
So a cast member, from out of nowhere jumps on the boat and tells the man he can't use flash photography and takes his camera. The man was talking in Japanese so I don't know what he was saying but a few minutes later he whips out another camera (same style) ad starts going at it again. He was laughing and having a good old time, heck my sister and I were chuckling too. Another cast member jumps on the boat and takes his camera and then disappears.
Finally, he whips out another camera and starts taking more pictures. They stopped the ride and took the dude and his camera off the boat. I never did find out what happened and I've never ever taken a picture on that ride.