Anyone can post to Ask HN. There's no karma limit.
https://news.ycombinator.com/item?id=35326541 certainly posted, and would have shown up on both /newest and /asknew. But it wouldn't have ranked on /ask (or not for long) because the upvotes on it were mostly dropped by our anti-voting-ring software. It looks like that was a false positive. I'm sorry! We don't know how to write anti-abuse code that doesn't have false positives.
https://news.ycombinator.com/item?id=35326541 certainly posted, and would have shown up on both /newest and /asknew. But it wouldn't have ranked on /ask (or not for long) because the upvotes on it were mostly dropped by our anti-voting-ring software. It looks like that was a false positive. I'm sorry! We don't know how to write anti-abuse code that doesn't have false positives.