Bullshit. Just like punycode TLDs. And I say this as a guy from a cyrillic country. We invented a footgun and then promptly shot themselves with it.

Instead of making everyone use safe ascii charset for IDs (domains, names like the one in the article, etc.), we go for stupid fuckton of language charsets that cause such problems. All in the name of accessiblity or whatever. And all this does it let people continue living in their language-specific bubble instead of just learning the main international language: english and living happily ever after.

And now people suggest some crutches like restricting the data to some subset of unicode. Never learn.