GP never said this was a conscious decision. Most of the time the speaker doesn't realize they're doing it. It's similar to body language.

> The speaker chooses to deploy a style [...] The bias being present in the speaker is the key factor to understanding this phenomenon. The experiment that I propose is: if the bias was gone, would the speaker still use this speaking technique?

> . . . subconsciously used as a defense mechanism

> It is a subconscious defense mechanism.

Clearly they mean the "choice" is subconscious. Perhaps poor wording but only if you ignore the rest of the comment is it unclear what they mean.

I appreciate your statements here. You are correct. It's an unconscious choice. Remember: the bias exists in the speaker.

That does not make any sense. You are projecting own feelings into speaker and then claiming speaker somehow want you to have those feelings.

I can't make heads or tails what you mean here. Please explain why you think they are "projecting own feelings".