The non-US titles have all been removed from the later additional lists. I think Gaskcadd has British titles in there, coded, and they need to be excised.

I've edited a post above to suggest the benefit of having a broad list, good and bad quality aside, as a ground of coming to understand content, types of stories, etc.

Top 500 or Top x has a different purpose. The problem there is that quality depends in part on the purity or intensity of the neo-noir elements, but what these elements are can't be fully laid out without observations about the elements. There cannot be a Newton without first there being the observers of the planetary and star movements, the Brahes, the Keplers.