When it's an event covered by different sources, it's better to find a version in English.
When there is an official translation, it's better to post the translation.
But sometimes there is no English equivalent :(
I remember very few post that got traction in other languages, like "Homer in CSS" in Spanish, or a very strange custom keyboard in Japanese. It has to be very unusual, extremely good and have a strong visual component.
---
From and old comment by dang:
> We have deep respect for other languages but HN is an English language site, so the articles posted here need to be in English.
Sorry, but there is no "official" translation to English.
I did not know that links in other languages were flagged or ignored. I will never post like this again.