Well I can tell you that he has the same behavior that I have known from him since 1999. I can also tell you that it may come out as abrasive over the net because people already have a predisposition about him and as such already think he is trying to be abrasive. However, if you meet him person and chat with him and he asks the same question you will find that it is not as abrasive as you might think.
I don't think it is even that, because plenty of people have stated that what I write is blunt and to the point, but not hostile, at least not the way some people are digesting it. What I do think is that people feel hostile that someone would actually have the "nerve" to challenge their beliefs and opinions with facts, facts that they cannot refute with facts of their own. So they sit there all mad, and feeling that anger, project that on to me. It's the old describing other people while looking in the mirror thing.
Remember recently when I mention the Psychology Today article about how masters in their study followed a similar path, which included the selection of three different teachers for different parts of their journey? The stage 1 teacher is what I would call a color belt teacher. This is your average normal dojang, which is geared almost completely towards the development of students to the 1st Dan level. Once students get past that, the curriculum gets very abbreviated. Most instructors can raise students to this level, no problem. The issue becomes what do you do if you want more?
According to the article, at this stage, masters select a new teacher, which is very different than their first teacher. The focus at this stage, according to the article, is precision and perfection in all things associated with the given field. The teacher is a perfectionist, and what was acceptable at the lower level is no longer acceptable. Many times students/budding masters have to move and relocate to learn from their new teacher. This is similar to high school graduates moving away to go to college.
I think the second level teacher is what is most needed today. It is where I have focused for the last I don't know how many years. It is the approach that I take in these online discussions. Most of the conflicts come from those that do not wish to explore things is such a detailed and precise fashion. They are comfortable with what they learned and are still learning from their level one teacher, even if their rank is higher than 1st Dan and they have not really learned anything new in a long time. And they get mad when someone challenges their beliefs and asks them to be more precise in their responses.
Nothing wrong with that, just like there is nothing wrong with graduating from high school and stopping your formal education at that point. Not everyone is cut out go to college, much less grad school. But if that is where people are, then frankly, I don't see the need for higher dan ranks. Afterall, they don't give out college degrees to those who continue to hang out at their high school, long after the graduation commencement ceremonies have passed.