Why LLMs can't handle everyday social etiquette in Persian:

Reading between the lines, this is a really good caution for any diplomats who are thinking of firing their interpreters and replacing them with "AI".

https://arstechnica.com/ai/2025/09/when-no-means-yes-why-ai-chatbots-cant-process-persian-social-etiquette/

When “no” means “yes”: Why AI chatbots can’t process Persian social etiquette

New study examines how a helpful AI response could become a cultural disaster in Iran.

Ars Technica
@cstross Oh, god, this is the kind of social etiquette that would give me nightmares if I noticed it rather than stumbling through it like some sort of aggressively clueless politeness kaiju.
@wordshaper @cstross This is like Irish mammy etiquette where you need to refuse at least three times to assert you don't want eg a cup of tea, the last piece of cake etc.