In regards to @BigHomie's edit:
One of the first things you have to ask yourself in regards to "good-subjective" is whether the question is answerable in a Stack Exchange context. The number of possible end results should be relatively small, with the devil being in the details. More than that and the Q&A becomes forum-like discussion with everyone piling on opinons.
A question with many possible solutions is acceptable if the number that apply in a professional context are few. If the professional scope doesn't narrow it down, or we could write a book about it, then the question is too chatty and not good for the format. Your example about zero padded hostnames in particular does not strike me as a good match for our format. Speaking as a DNS admin who has worked at a few companies, hostname formatting discussions are right up there with religion and politics.