Recent questions like Why are the 10 year German bunds and 10 year US treasury yield highly correlated? and Baht drops and Gas Prices too? belong to a certain class of question that asks why does thing one correlated with thing two when I would expect it to be very/slightly different level of correlation. These questions are usually low-effort to ask and are essentially unanswerable or answers would often be opinion based. I'd like to see if there is consensus against these sorts of questions.
However, somewhat somewhat similar questions are of good quality: Correlation between salary level and housing prices in a town and Can econometrics test for correlation or causality between prices and corruption?. I'm not sure how to discard the former without junking the latter.
Do you share my dislike of these questions? Can anyone suggest a limiting principle or good distinguishing feature for these correlation questions?