The "not constructive" close reason [is being removed][1] and replaced with:

> **primarily opinion-based**
>
> Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise.

This change is already live on mSO and should go live on SF shortly.


  [1]: http://meta.stackexchange.com/q/171732/189912