The HN crowd tries to discourage sarcasm. It doesn't matter if you are correct if you are sarcastic about it. If you had started your comment with something l

The HN crowd tries to discourage sarcasm. It doesn't matter if you are correct if you are sarcastic about it. If you had started your comment with something like "The article implies" instead of "Haven't you heard?" you probably would have been upvoted.