I would disagree with that as well. I see my time as extremely valuable and don't care to waste anything so precious as my time. There are times I'll ask some folks to stop posting to me for various reasons and they can always make their points to somebody else.
1Pe 3:15
But sanctify the Lord God in your hearts: and be ready always to give an answer to every man that asketh you a reason of the hope that is in you with meekness and fear:
We need to work on the meekness, no doubt about it