This reminds me of the discussion of "quality" in Zen and the Art of Motorcycle Maintenance, where the class finds that while nobody can exactly define quality, when confronted with high and low quality writing everybody could recognize which was which.

As OP realizes, nobody thinks Knuth's ACP is poorly written even though it's hard. The elegance is obvious, even if the algorithm is hard to understand. On the opposite end, I've come across FizzBuzz implementations from job candidates that I've struggled to follow. I've often seen a 10-1 difference in code sizes for different implementations of the same problem, and while there's edge cases where smaller code can start to become confusing, generally every dev on the team recognizes which of the two is more readable.

I have no problem with the idea that there can be subjectivity in discussions of readability. But the idea that readability is purely subjective, or only has to do with differing styles is ridiculous. In fact, I don't believe for a second that OP really believes this. He wants to make a point about subjectivity, which is fine, but for some reason has chosen to write it in this exaggerated clickbait style.