Consider this question. I was the first one to vote for closure, since it was (and still is) too broad and argumentative. However, I did not see fit to downvote it, because it's not a stupid or badly-intentioned question, just not a very good one.
However, 3 other people did downvote it and I'd like to know why. To me it seems that if a question is not ridiculous and asked in good faith, then it is bad form to downvote it as an accompaniment to closure. It feels a bit unfair and may look off-putting to new users.
What do you think?