The quote posted in the initial comment really has no relevance to Armin's article so it's fair enough to call it out in this context.
To attack the quote itself by simply assuming the author is inexperienced in OO just silly. Particularly so, given that Joe Armstrong has a grasp of computer languages that most of us could only ever dream of.
I stand to this quote, Joe Armstrong has no documented OO experience (OO development for some years, development of an OO language etc.) and is quoted as an expert on the topic of classes. None of the people who have voted down all my comments have shown any experience in OO/classes development of Joe Armstrong. Joe Armstrong admitted to bash OO in a blog post ("silly" see quote above) to stir up people.
[Edit] It's the same when people quote Linus on GUIs. He might be an excellent kernel hacker, with a great understanding of large scale open source development, but his opinion on GUI is as good as everyone else. Or how people quote Wozniak on everything. This is not science but a guru cult. I'm proposing that we move our industry to facts and experiments and end the pop culture and guru cults. I'm not with Raganwald that we should embrace this pop culture. This is the reason that I vehemently disagree when people cite Joe Armstrong as an expert on classes or when Joe Armstrong tries to stir up people my bashing OO.
To attack the quote itself by simply assuming the author is inexperienced in OO just silly. Particularly so, given that Joe Armstrong has a grasp of computer languages that most of us could only ever dream of.