The article caters to the majority of hn users that use a browser that automatically translates the article. Chrome on Android certainly did.

You are the minority demanding to be catered to.

I think it is against the spirit of this community to suppress exciting content on the basis of its language.

This community is also undoubtedly composed of the kind of problem solver that can overcome this kind of hurdle.

Even then Japanese-English translations are hardly accurate and don't often translate fluently. I'm sorry I refuse to use a browser with automatic AI translation.