It would look like the current EU Hacker News: nonexistent.
Despite having, relatively speaking, [some islands of] fairly decent English education, EU doesn't have broad native-level English literacy. The level of discussions in English is fairly low, and people are not as likely to recognize or casually learn cross-disciplinary jargon like full time English speakers.
It's relatively straightforward for a native English speaker to enter into discussions at the level of HN, but for somebody who does not use English absolutely every day in every function of daily life, it'll be a chore.