I think there's a lot of value in this article (which really isn't about Haskell; but more generally about being in the top 5% of programming). I can't disagree with the idea that we should show more open-mindedness toward different approaches and civility to new entrants.

That said, I'm going to take a different tack, not because the OP is wrong, but just to explore a second orthogonal component.

As programmers, we have both a weak and a submissive tribal identity. That's a problem, and we should change it. I call it "weak" because we aren't good judges of who belongs and who doesn't. The true bad guys (and, yes, they are quite bad and we must oppose them) have been commoditizing engineering work for decades by flooding the market with low-skill, untrained, "software engineers" (ScrumDrones, CommodityJavaDevelopers, etc.) in order to reduce top talent's leverage in the market. It has created this mythology that talent and skill don't matter, and while it's completely wrong, the failures are delayed enough that the bad actors in the business can be promoted away from the problem until shit breaks.

Our fatal flaw? Instead of striking the bad actors in the business world, we attack those low-skill engineers, who might be infuriatingly incompetent, but really didn't do anything wrong. ("You're just a PHP retard, so shut the fuck up.") The true bad guys don't really care what happens to the CommodityScrumDrones, and that's the point of having them is that they're disposable. By attacking them, the unskilled pawns, we gain nothing. Sure, they're incompetent and may be anti-intellectual (or, more likely, they just don't give a shit about programming and shouldn't be programmers, but aren't stupid or bad people). But the anti-intellectualism we must fight is that of the businessmen who are driving us in to the ground.

I say it is a submissive tribal identity because this divide-and-conquer game works. Dysfunctional organizations and societies usually form three classes that matter. (There are subclasses within each related to prestige factors that don't matter.) The High must keep the Middle and Low at odds with each other, lest they band together and overthrow the High.

In order to depress programmer wages and working conditions, the bad guys prevent professionalization and collective bargaining, create startup mythologies in order to make business bad actors look like real technologists, and flood the market with commodity programmers (the Low). Amazingly, the more skilled programmers (the Middle) will, driven by their disgust in sharing working conditions with the Low, actually work unreasonably hard and clean up their messes, just to out-compete them in a game that doesn't really matter (the unskilled are never fired, and the overworked are rarely promoted). When this works as designed, they turn into the Clueless layer of the MacLeod model.

We have to fight the anti-intellectualism. We've let ourselves be typecast to business subordinates rather than technologists and it's goddamn fucking disgusting. When some businessman says "languages don't matter", we have to humiliate him for his stupidity and anti-intellectualism, before he feels empowered enough to start hiring commodity engineers. We do have to fight, and we have to get nasty, and we have to crush our enemies. But we also have to stop clawing at each other over petty differences (e.g. tabs vs. spaces) and focus on the battles that matter.