I just want to comment that this is who HN is great.

I posted what turned out to be a misunderstanding (or incomplete if you are more generous) understanding of spectrum rules. My comment was correctly downvoted to 0, but more importantly I got a response that simply explained where I was (utterly) wrong. No flames, no further conjecture, just references. There's a little bit of following discussion.

This is the way it's supposed to work!!