That&#x27;s deeply unfair in the case of a non-native speaker: almost no one reaches foreign language proficiency at the level you&#x27;re implicitly demanding, which is basically perfection.<p>I don&#x27;t know if this author is a native speaker but his name suggests he may not be. On HN, you should err on the side of charitability about this—especially since grammar peeves, though we all have them, are the quintessence of off-topic.