For me it’s just that not answering (because the question is vague) OR asking for clarification are also valid responses.
For example, your rewritten question - between an unspecified man or unspecified bear, which would you choose? - is already more clarifying than the original.
You are specifying that it’s a gamble, so the gamble is part of the question. The original question doesn’t say that, so assuming it’s a gamble is yet another assumption that we would need to make to answer it
That’s a fair way to look at it.
For me it’s just that not answering (because the question is vague) OR asking for clarification are also valid responses.
For example, your rewritten question - between an unspecified man or unspecified bear, which would you choose? - is already more clarifying than the original.
You are specifying that it’s a gamble, so the gamble is part of the question. The original question doesn’t say that, so assuming it’s a gamble is yet another assumption that we would need to make to answer it