Ask HN: Why doesn't Hacker News use a captcha?

7 points by aerodog 7y ago ↗ HN

how do they do such a good job of keeping out bots and stuff?

3 comments

[ 170 ms ] story [ 658 ms ] thread

proyb 7y ago ↗

They have duplicate link detection in place and newcomer post will not appear to public.

quickthrower2 7y ago ↗

You get a captcha sometimes when signing up, probably depends on how dodgy your IP is perceived to be.

Rainymood 7y ago ↗

When I first came here 4 years ago I naively made some comments like I was on Reddit. My comments quickly got downvoted and I started putting more thought into my comments, only commenting when I had something interesting to say. The (very) harsh downvoting culture here does a good job of keeping low-effort comments out. That has been my experience at least.