Hopefully nobody does. I can tell you first hand being the guy in the water waiting to hook on to the bow eye, it kills your maneuverability. It is how my mom used to load up, and in a river with strong current at that. She would line up about 50 ft out, start heading in and kill the engine about 10 ft. out. Now, to have enough momentum to get to the trailer, the boat would be cruising at say a nice slow 2 MP, and right in front of it is me, a 100 lb kid. Let me tell you, boats can glide at low speeds with very little loss of energy meaning that the poor guy waiting in the water has 1+ ton of pure inertia to stop.
This is what a little nudge into reverse is for.... to kill the momentum at the last moment before you hit the trailer at speed. You can't do that with the engine off. (Note: it also will take the inertial spin out of your prop that might otherwise stir up the bottom even at an idle). Look at your 10 year old kids scrawny little arms, and then please use neutral!!!!
