The examples in the grandparent do seem to miss the point that Alicorn was originally describing.

I find it a suspicious coincidence that we should arrive at similar answers by asking dissimilar questions.

It is still surprising, but somewhat less so if our question answering is about finding descriptions for our hardwired intuitions. In that case people with similar personalities can be expected to formulate question-answer pairs that differ mainly in their respective areas of awkwardness as descriptions of the territory.