The Low Quality Posts queue recently gave me this question to review. It clearly looked like one of those posts which are there just to test us (not a very short post, and it has a score of +5).
I opened the full thread page, and it was already closed. I decided to vote to close too, but the review system didn't like that, and I got a warning telling me I should have clicked "looks good".
Now, how can the system know if the question is constructive/on topic/a real question? It can't, right? If those "examplary" questions are selected algorithmically, shouldn't their status (open or closed) be taken into account?