I've had worse. One user asked a yes/no question. I answered "no". My post was deleted. I cried for a couple of days but I got over it. I think. Still getting misty-eyed when I think about it. It took me a 2, maybe even 3 seconds to craft that totally-on-topic and very useful response. The forum is now so much worse without that valuable contribution.
I think if a person (most probably a newbie would do such a thing) repeatedly posts one liners like Great, OK, Yes , No should be deleted but if anyone rarely do such post then these should not be treated as spam.
As for you example, instead of writing only No if you have written as
"No, I don't agree with you and my answer for your question is No. So you can consider my response on your view point as No" . This will make it a constrictive post
