If you're on HN and haven't read all of the following, it's worth your time and effort to do so:

http://ycombinator.com/newsguidelines.html

http://ycombinator.com/newsfaq.html

http://www.paulgraham.com/disagree.html

http://www.paulgraham.com/trolls.html

http://www.paulgraham.com/say.html

Though far less important that the above, there are plenty people on HN who are counter examples to the points of the article author (vanelsas). I just had a exchange which was counter example: http://news.ycombinator.com/item?id=3241478

It's fine to disagree, and it's good suggest improvements, but also taking the time to note the good stuff created by the original author helps and encourages civility.