For years I thought that Hacker News has no moderators. Apparently it does, but they seem to keep a low profile. I have no idea what their protocol is and I don't see any help menu that mentions them.

I found out, the other day, that if you post too many comments in too short a time (also undocumented) your final comment is deleted (sorry, you just lose it) instantly with a somewhat snarky message about how you post too much.

I am a little mystified about what community Hacker News serves. It doesn't seem to be the kind of hackers I grew up with (fiercely skeptical, a la 2600 magazine), because, as one example, skepticism about AI or self-driving vehicles is generally downvoted.

Not so much Hacker News as Next Shiny Toy News.

Even so, I know of no better way to discover interesting tools and trends than Hacker News.