I believe people by nature have tendencies to read with emotion. So when they feel their belief is being criticized, they can't see the other person's viewpoint. In order to truly read a Hub and comment on it with an open mind, one must put aside their own opinion and read it through the writer's perspective. Not all of us are going to agree on everything. The difference is in respecting the writer for their own opinion which might be different from our own. And not read with emotion, but read with a nonjudgmental and non pre-conceived notion about the written word.
Otherwise, if we read something totally convicted with our own beliefs, we are not allowing ourselves to learn new things from others.