If you're a noob who's learning, then your question will be downvoted to hell and u will be blocked as question is deemed low quality..
If you're a pro, then your question will be about something obscure which the mods don't understand, and also will require a more nuanced answer, so it will be downvoted to hell and u will be blocked.
So it's aimed at mid-level devs to ask things with certain answers, the kind of answer which would most likely be found in documentation. So the people who require help/answers the most are kicked off, whereas people who need answers/help the least are encouraged.
I've seen reports that most people on Hacker News never or rarely comment themselves and I think StackOverflow works well for that common use case.