I was going to post this elsewhere, but I guess I'll just drop it here... That's not what HN looks like to me. Why? Because like (I assume) most users that reached whatever the magic number is for a custom-color top bar, I've changed the default orange (a random shade of purplish in my case).

I 'got' the design because of the description, but if I had seen it randomly on the street, I'm not sure I would have immediately associated it with HN.

Not sure that any of this matters, but the marketing/branding side of me finds the whole color scheme thing an interesting discussion.