Re: Lighting ...
I was not quoting the Nav Regs, I was giving a general interpretation, albeit very brief generalization, of how to think on the water. The link to the Nav Rules was previously posted so I saw no reason to quote the Rules. As for the commercial part, yes you are correct, but again, just trying to give the OP a sense of what's on the water. If you think about it, how many of those large vessels are not commercial? If I had thought it was that much of a deal, I would have pulled out the Colregs from my masters pouch and given an on line course in the Rules of the Road.
Let's all be friends and not nit pick over giving anybody safe advice when on the water.