The guideline has some vaguely politically correct overtones, which seems to be putting people off a little, but I think this is unwarranted. Good comments see

The guideline has some vaguely politically correct overtones, which seems to be putting people off a little, but I think this is unwarranted. Good comments seem to me to have the same characteristics - insight, good will, lessons from experience, novelty, thoughtfulness. Strongly held, polarising and poorly explained opinions aren't one of those characteristics. I myself have written comments which start with a negative comment, and then through fleshing it out arrive at a more moderate position at the end... at which point I go back and change the first sentence. Don't just write the first sentence...