The only communities that are "like" HN seem to be HN and rationalist ones, like Astral Codex, LessWrong, etc. At least as far as I've found. /r/medicine is al

The only communities that are "like" HN seem to be HN and rationalist ones, like Astral Codex, LessWrong, etc. At least as far as I've found. /r/medicine is also pretty interesting, albeit more diffuse. You have to be a certain kind of person and a certain kind of commenter to benefit from the kinds of rules and norms we have here. We reward curiosity and heavily penalize single-layer jokes and memes. But unlike heavily moderated subreddits, we also value quality asides and off-topic branches, so long as, again, they reflect curiosity. Perhaps the biggest blocker to HN-like communities for other fields is we're allowed to be wrong on the internet. And we're allowed to point it out, correct each other, and gratefully accept corrections. HN & Rationalist groups can accept and integrate new information, and we can accept that some people are misinformed or having a bad day, and that they're not malicious or trolls. Whereas in most online communities you can be either "right" or you can be gone.