"Some subjective questions are allowed, but “subjective” does not mean “anything goes”. All subjective questions are expected to be constructive. What does that mean? Constructive subjective questions:
*inspire answers that explain "why" and "how"
*tend to have long, not short, answers
*have a constructive, fair, and impartial tone
*invite sharing experiences over opinions
*insist that opinion be backed up with facts and references
*are more than just mindless social fun"