Mamma’s not really dangerous. She’s just a case of arrested development. Most of us have outgrown ethics and morals and so on. Mamma’s just not grown up to them yet.
I'm not even sure what this means. It seems like they're idealizing being a sociopath.
I don't really dislike these characters. I'm just bored by them. If this weren't a necessary square, I'd probably drop it. And I doubt I'd be able to find a more interesting noir book to replace it, unless The City & The City really would count (and that would be a reread).
The hard-drinking Nick and Nora duo has the potential to be fun, as the myriad of spinoffs and caricatures evidence, but the originals are pretty dull.