OK, for example, I was just looking at a discussion on another forum, where poster #1 posted a statement, then poster #2 questioned the validity, and poster #1 replied saying:
"I would stay out of topics where you have no knowledge about the subject."
Does it sound harsh/unkind to you?
Now, if somebody said it in Chinese, it would be something like:
请不要对你不了解的subject发言!
If you are fluent in both Chinese and English, which statement do you find harsherer/unkinder?