A few minutes ago, a person downvoted my answer on Stack Overflow to one question, because the actual question is not suitable for the site.
I've never seen anybody downvoting an answer because such questions shouldn't be encouraged.
Downvoted because I feel such questions should not be answered. Answering these questions will only promote laziness and degrade the usefulness of this site, IMHO.
He flagged the question, but it didn't get closed yet. I don't know if it doesn't fit or not. In that case, how justified is it to down-vote an answer?
In the first place, is it acceptable to down-vote an answer stating that reason?