Off topic: I like how I understood the technical article below despite not knowing a single Japanese word, only by reading the code, would be interesting sometime in the future that people are using programming languages as a mean of universal communication!
Assuming the code is written using English words. Here in France it's not rare to come across a codebase that uses French naming for variables and functions, or even a mix of English and French:
As a French living in Japan, I can tell that it's the same thing for cheap companies that don't care about the code quality, but with an even worse mix of characters.
To reuse your example, I've seen things like that:
Off topic: I like how I understood the technical article below despite not knowing a single Japanese word, only by reading the code, would be interesting sometime in the future that people are using programming languages as a mean of universal communication!