Instead of closing those questions, they could move them to the "Programmers" site. http://programmers.stackexchange.com/faq?mnu=1
All subjective questions are expected to be constructive. How do we define that? 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.*