Exegesis involves interpretation. And that interpretation does require a groundwork, a standing point from which to interpret. If we remove the groundwork, the interpretation begins to become a bit wild and unreliable.
Because of that, questions about "What does X mean?" are, to a degree, doctrinal. The interpreter comes from a doctrinal standpoint and all of the interpretations will, to a degree, be filtered through that viewpoint. For example, a Catholic interpreter will interpret from a viewpoint that a Jewish interpreter would not.
The answers, while they are somewhat doctrinally based, do not necessarily have to be doctrine. In other words, while we may interpret a passage based on our background and our underlying beliefs, the answers we give should not include how to apply these passages.
To go one step further (and address your question), most people will not be able to give a solid exegetical/hermeneutical answer that comes from both a Catholic and Jewish perspective. Answers may be survey answers when the author has the ability. However, I believe that answers from a particular viewpoint must be allowed.
With all of this in mind, I still think that "What does X mean in y:z?" is a valid and acceptable question that can have a valid and acceptable answer.
You must remember that accepting an answer simply means that the questioner found it useful for his/her purposes. Furthermore, while exegetical answers will come from a standpoint that contains doctrinal underpinnings, they must not (per our guidelines) contain doctrine. Therefore, feel free to ask questions about "What does X mean in y:z?" and accept whatever answer that you find most useful.