Used to be that "not a real question" was one. Now, it says something silly like "Unclear what is being asked", to which I immediately thought, "Oh, it's clear what they want. But it both isn't a question, and will never see an answer because the way they declared what they want, and the final result will never see the light of day.
https://superuser.com/questions/612243/how-to-create-our-own-codec-for-a-media-player
Should I maybe have tagged it as low quality? Or just downvoted it instead of flagging it as "Unclear what is being asked" (which used to be "not a question")