"Have to?"
Hardly, but I can't imagine you could read through such an article and not have a comment come to mind.
Considering as Lizol has posted 2 articles on this topic today it's likely lizol and others have already beat the topic to death elsewhere.
What am I supposed to comment, if I fully agree with what say the people quoted in the article ?
Go through any of the "most popular keywords" and you'll see, that most of the threads are without the poster's initial comment.