So we agree people shouldn't write off these posts with "does turkey sandwich sounds good to you" like it's some deep insight to default to the trivial answer?

Does asking people on HN count as "research"? It does in my book. It's not perfect, but then nothing is.

The user plausibly isn't asking others to tell him what he "likes" -- a subjective preference -- but rather the user could be asking for objective research and information.