[abyssin]

If your front light is correctly aiming down, there’s no need to disable the light. Modern bicycle led front lights are most often incorrectly set up, though.

[cubefox]

I can control the angle, but permanently aiming it down so far that it can't get in anyone's eyes is completely impractical. You would only see what's directly in front of you and you would miss a lot of stuff.

[abyssin]

Not sure about your particular model but most front lights are designed to make the path visible in front of you, and not above.