Sadly, this was likely the result of a combination of "Fastest Gun in the West" syndrome and "Let's all pile on everyone else thinks it should be closed so I do too." Sadly reviewers often fail to review properly which in my humble opinion goes like this:
Read what you are reviewing.
Follow the link to the original question and read everything to gain context.
If there is an accepted/upvoted answer, clearly the question was understood by someone, in which case if it's unclear to me the fault must be either in my comprehension or inexperience with the topic at hand. Leave it alone!
If the question is understandable and you can provide a better answer than what you see, do so.
If you see an answer that looks promising but could use improvement leave a comment encouraging that improvement for the answerer.