"Please don't post shallow dismissals, especially of other people's work. A good critical comment teaches us something."
"When disagreeing, please reply to the argument instead of calling names. 'That is idiotic; 1 + 1 is 2, not 3' can be shortened to '1 + 1 is 2, not 3."
I don't know about badly written, because I couldn't even read the article, and I didn't want to get a headache by trying. The layout is atrocious.
"Please don't complain about tangential annoyances—things like article or website formats, name collisions, or back-button breakage. They're too common to be interesting."