Funny; I was not aware that we were having an argument. Usually that involves having both a subject and arguments about it. "I think" and "I don't think" do not match criteria for such.
I didn't think about the word's meaning through prior either. Probably very few have. I believe he has made a honest mistake on that point.
We all also have our blind spots, and that includes Stefan. When he started several of his early books about subjects like ethics and relationships with a sermon against religion, it's safe to say that's where he is at his most emotional and least rational, which is apparent from his arguments against them. I'm not overly concerned that you get offended about that. I seek truth, not approval.