My use-case for the rotated blade is occasional cutting down a long length of sheet material like steel (so as not to distort the edge with snips) or plastic (also applies to larger pieces of copperclad). After finally being able to visualise the thing (after looking at the pipe-cutting-man photo) I realised that what would happen in my case is that it's actually the right-handed person who has to flip the blade, and gets the back of the saw dropping below the blade level. For me it would be the same way round as pipe-cutting-man, but the back of the blade would be above the blade level. Just puts my hand at a reversed angle (fingers upwards).