Code review should be informal and conversational, these guidelines are the opposite of that. I'd say the real problem here is people not having the rapport neccesary for a real conversation.
PLEASE READ THE POST. "informal and conversational" are EXACTLY what this poster posits. The problem is that WHAT is considered "conversational" is subjective without exact and precise examples to guide by. The poster provider these examples in extreme detail both for Negative and positive examples. PLEASE READ THE POST.
I hope your code reviews are more humane and less condescending than this comment.