3 points
Low-karma accounts are rate-limited. I don’t know what the threshold is, but that goes away after you gain some karma.
1 point
3 points
From what I can tell, all the karma thresholds are dynamic and probably only knowable by admins. If nearly 1000 isn’t enough to avoid rate limiting then they sound pretty aggressive.
From my perspective HN’s approach seems to do pretty well at mitigating bad behavior, but might be a little too hard on newcomers and casual users.