I have noticed that a negative comment(against the main point of the post) tends to be sometime initially down-voted by some superficial prejudice that it shoul

I have noticed that a negative comment(against the main point of the post) tends to be sometime initially down-voted by some superficial prejudice that it should be also mean-spirited. It seems that the community naturally upvotes that comment to support diversity of opinions. Of course such support tends to bring some of the provocative comments up in the list- in my view.