I don't think a native speaker would ever make this mistake - it sounds incredibly awkward. It's not in the same class as many well-known and common spelling m

I don't think a native speaker would ever make this mistake - it sounds incredibly awkward. It's not in the same class as many well-known and common spelling mistakes, like grocer's apostrophe, loosers, and others. This case the poster probably went back to remove the missing word because of the character limit on HN descriptions.