Is it weird? HN's largest audience is American. The next largest is probably Europe. I'd be surprised if the percentage of Japanese users on HN was high enough to break into the single digit range.

Edit: My assumption seems close, Japan is at 1% based on this. I'm surprised.

https://news.ycombinator.com/item?id=35567986

https://archive.is/20230415023530/https://toolhub.tech/blog/...

It's funny seeing Germany third though. Nobody I know uses it unless I introduced it to them, and I've introduced it to quite a few people.