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](http://serverfault.com/questions/606191/to-zero-pad-hostnames-or-not/606195#606195) strikes me as borderline. On one hand, it's always good to plan ahead for future capacity. On the other, how many digits is a company specific thing, and speaking as a DNS admin who has worked at a few companies, hostname formatting discussions are right up there with religion and politics.