> rather than fixing the underlying code

There's not much you can do to fix the underlying code if the language doesn't allow you to declare a struct Vector3 { float x, y, z; } without heap-allocating it.

Yep, once people discover the multitude of JVM flags the cargo culting begins...

It really applies to anything with a huge number of options, I remember similar things from back when I used Gentoo and the wild suggestions I'd get for what exact CC/C++ compiler options to use...