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Comment by Pannoniae | Hacker News Reader

Unpopular opinion: something being unusual does not necessarily mean it is bad. Yes, it will look foreign to random people looking at it, but if someone wants to seriously work with it, it will only take a few days to get familiarised with it. The justification of "cognitive overhead" is, from what I have seen, a shibboleth for rejecting "outsider" code written by someone not conforming to the language standards by claiming it is harder to understand. Personally, I would say that says more about the person's inflexibility and/or OCD, not the writer's style.

I am not saying every style is good (some simply obfuscate things and/or make things overly verbose or unreadable) but rejecting a style solely based on it being "non-idiomatic" is not a good thing.

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Well said. This is also something that I don't buy from the criticism towards Lisp. Something along the lines of: "Lisp did not become mainstream because everyone writes their own little language for their project, and so no one can understand other project's code."

pg wrote excellent arguments against this criticism in "On Lisp" § 4.8 Density, which apply just as well to the discussion above:

    “If your code uses a lot of new utilities, some readers may complain that it is hard to understand. People who are not yet very fluent in Lisp will only be used to reading raw Lisp. In fact, they may not be used to the idea of an extensible language at all. When they look at a program which depends heavily on utilities, it may seem to them that the author has, out of pure eccentricity, decided to write the program in some sort of private language.

    [...]

    If people complain that using utilities makes your code hard to read, they probably don’t realize what the code would look like if you hadn’t used them. Bottom-up programming makes what would otherwise be a large program look like a small, simple one. This can give the impression that the program doesn’t do much, and should therefore be easy to read. When inexperienced readers look closer and find that this isn’t so, they react with dismay.”

I don't even think that's a controversial opinion. Breaking convention isn't inherently bad; it has costs, some of which you described. In this case specifically, the novelty is not justified by any significant benefit.

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