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We won't mind a bit.
I can already lots of use cases for these Node Attributes
Crell imagined user created Publishing Options, and it seems like a good way to implement them.
Another way could be the ability to set taxonomies as "private" or "public". Public ones would be displayed on the website's pages, private ones wouldn't be visible to end users. The advantage compared to Publishing Options is they would not be limited to boolean values.