Alex, you have me at a disadvantage. You have met DUP (is it Carl? I seem to recall that from JA's description of his visit...), and I haven't. All I have to go on is his abominable forum persona.
And, it is abominable. Overbearing, obsessed with being right, and determined to shoot down all the aspects of assembling a system that many of us find important. But wait, as the man selling Sham-Wows says, "There's more!" Not only does he have to be right, the rest of us have to be deluded and stupid. That's the important point. There are no gentlemen's disagreements with DUP. You either hear as he does, or you are deluded. And that is always the last straw. Especially when it comes from an illiterate lout who can't even spell "the" or write in complete sentences.
Now, I cannot argue with you about Carl. Nor will I. But DUP is a pluperfect asshole. You may wish to infer higher sonic truths from his babblings, and you may, indeed, find them when visiting Carl in his digs. But such interpretive aurae do not glimmer in the writings of DUP. You might as well look for hidden transcendence in the poetry of Ferlinghetti. It just isn't there.
I have no quarrels with Carl, whoever he is. But I have plenty with the belligerent Mr. DUP.
Finally, I do not say all these things "as a matter of course," whatever that means. I have earned the right to insult from being insulted. As have about 90% of the folks who regularly respond to this forum.