For quick lens changes. If I have room in the bag, I sometimes leave the hood in the forward position when in a rush if it fits. However, most of the time, the issue is with UWA lenses. Those hoods afford little to no protection, especially when the front element is bulbous.
Same here, I leave the hood forward when lenses are in the bag (when they fit) and use no filter. I simply find it more convenient than to reverse the hood every time. Here pinch caps are IMO easier to deal with (I'm mainly thinking about the 85mm 1.8 and the 90mm TS-E). While I work , I don't put any cap back (except on the 15mm fisheye), but when I pack, I don't reverse the hood, so pinch cap are a bit more comfortable in my case.
Everyone has its gimmicks when he works.....
