Looked human-ish to me, what signs did you see?

I thought the style was like ChatGPT in a "clever, casual, snarky" prompt flavor as well. I see it a lot on LinkedIn especially in sentence structures like these:

"Invalid data? The parser rejects it. Done."

"That validation logic that used to be 30% of my CLI code? Gone."

"Mutually exclusive groups? Sure. Context-dependent options? Why not."

For me this really piled on at the end of the blog post. But maybe it's just personal style too.

What makes you think that and not that it's just an average auto-translate job from the author's native language (Korean)?

I’ll go one step further: what makes you think it’s an average auto-translate job? I didn’t notice anything weird, felt like your average, slightly ranty HN post. I’m not a native speaker though.

I found the content novel and helpful (applying a known but underappreciated technique (Parse, Don't Validate) to a common problem where I hadn't thought to use it before) and the tone very enjoyable. In fact, it's so idiomatically written that I can't even believe it's just a machine translation of something written in another language.

In short, a great article.