I did a fair amount of camping and backpacking when I was young. I would get annoyed by those that insisted on using a flashlight to simply walk down a dark trail. To me, it simply ensured that you would only see what the flashlight was pointed at. I much preferred to get around using my own night vision.
I have developed the same preference over the years while boating. I prefer to use my own night vision and get annoyed when other boats shine a spotlight into my pilothouse. However, I have use the spotlight on my boat a couple times when trying to read marina signs are dock numbers at night.