...but I'd also add he has stunted his own understanding by being so stubborn...
I certainly agree. By not being open to other views, he doesn't learn from other people's experiences.
I just read through some of the Kabbaz/Foo squabble in the AAAC thread linked above. I must admit that I don't particularly like Alex Kabbaz's online persona, as he often comes across as being (rather like Foo) quite argumentative and not open to other views, but Foo really went off the deep end in that thread.
After Foo lectured Kabbaz on economics and on how to run his business, Kabbaz then responded by saying,
"Somehow, by trying to avoid the unpleasant original premise of the thread, I have ended up in the untenable position of trying to explain my business - yet again - to a college student steeped in theory."
Foo then totally lost it and said:
It is now you who are speaking without propriety. I was not offended by your debate with me until now.
First of all, I am not a college student. I am a law student. I would like to assume you made an innocent mistake, but given the rest of your statement, it sounds likely you merely intended to counter my arguments by denigrating my person.
Second of all, and on that note, to insinuate that your position is untenable because I am a student--of whatever sort--or because I am apparently "steeped in theory" amounts to name-calling. In the same way, I might attempt to debase your arguments by insinuating you are merely an over-priced shirtmaker with a self-interest in justifying what you extort from your clients through dubious claims of altruistic artisanship. Of course, you wouldn't like such an insinuation against your character or motivations. I don't either.
Mind you, this is not the first time you have attempted to counter my arguments with reference to my demographic. If you recall, you quite readily questioned my ability to speak on a matter merely because of my age. What next--are you going to insinuate my argument is weak because of my race?
Rather than confront my arguments and thoughts on the face, you have now brought my person into question. I would like to think better of you, but frankly, this amounts to intellectual cowardice.
I'm going to assume that Alex Kabbaz was probably in his fifties at the time (although I have no real idea of his age) and that Foo was in his early twenties, so there's a gap of at least 30 years between the two and I assume that Kabbaz has probably spent all of that time, if not more, successfully making shirts. Meanwhile Foo, with
no experience of actual business, takes it upon himself to lecture Kabbaz on how he should be running his business but then takes enormous offence when Kabbaz refers to him as a college student who only knows theory and makes the very semantic distinction that he's not a mere college student, but a law student (what, they don't study at college?!?!).
To cap it all off, Foo concluded his post with this paragraph:
I have my suspicions about you and your business, but I have not voiced them. I will not at this time because they remain suspicions. However, I think this thread provides reasons why others should have suspicions of a similar sort.
What the...?!?!
Kabbaz comes across as officiously irritating at times, but I think that he showed enormous restraint in how he responded to Foo in that thread (well, the pages that I've read of it, at least), especially in the face of such bizarre, personal attacks by someone with no experience who is decades younger than him.
In its own, Foo-lish way, that thread may be even more epic than the Paone thread on SF.
Journeyman
is bang on with his Foo is his own worst enemy argument and I agree with
doghouse
that his pursuit of "stuff" is stunting. 
He'll grow into it! Panerai doesn't make green leather bands?
