Me. We're on a limited amp/hr budget. So when I'm in a known anchorage, I may not use the masthead anchor light if I feel that's safe. That's not a good idea. It's always safer to have one on, I know that.
So the hell with the rules I say. I'm going to stick an LED bulb in my masthead light this spring so I don't risk not running one at all. I'll leave the running lights alone.
I also use a simple Davis plug in light , which I have installed the brighter bulb into having been told how dim it was.