Yes, the question "What were your settings?", absent of context, might be of little value. But the question, "What exposure settings did you use, and what was the thought process that led you to choose that type of exposure?" is entirely relevant. For novices or people who are still trying to understand how exposure works and what the different settings do, the question can be simply an opening to explain how and why you elected to shoot the way you did and how the lighting, subject, and circumstances guided the choices. If the questioner just flatly isn't interested in hearing about the thought process involved in choosing how to set up the camera for a specific shot, but thinks the numbers you dialed in can be used as some kind of magic one-size-fits-all formula, then I would shrug the matter off; people who refuse to listen cannot be taught.
I am about to start trying low key photographs and what you describe here is pretty much what I am "looking" for. I am not asking these questions but instead looking at online material that covers the basics.
Almost all the material I find states shoot at ISO 100 to keep the noise down in my blacks, use a black background, and since we are talking about a indoor controlled environment, I can mimic some of the examples. There will be some tweaking due to my camera, lens, and flash being different; but I will get a good starting point.
Other than asking for opinions on equipment or software decisions, I do not ask a lot of questions on forums. But instead, I look for answers. Google is my friend; and with all the good sites for photography around, I usually find something close enough to my answer within a hour or two.
My point to all this is, I am old school in that I search for my answer before I ask the question on a forum. I think if more beginners would do this first, then veterans would be less annoyed with us.