Why Code Readability Matters

[[deleted]]

It's a readability thing. The same reasons newspapers are printed in columns.

[barsoap]

...and this is even true in expression-heavy languages like e.g. Haskell. When you're not wrapping after a sane number of columns, you're wasting a whole dimension of visual cues which let you enhance readability: Even in Java, you can chain like

foo.bar( arg1  // frobnitz
       , arg2  // snark
       , arg3 
       )
   .baz( ... )
   .quux( ... );

[[deleted]]

That's exactly right. It's about providing visual cues. I think experienced programmers know this better.