Citing your sources would be a great way of asserting your credibility. "Every blog post I have read that says the opposite" doesn't count.
I'd love to read some well-thought-out arguments against node from people who've seriously given node a shot, but I haven't seen any. Granted, I haven't been looking for them, so please prove us wrong.
I don't log the numerous NodeJS blogs I have come across over the year, my opinions on if the authors of Node blogs are qualified isn't really relevant to my point though: NodeJS is a step backwards.
I wrote a comment on reddit that expands on my reasons more, although the second point is less of a problem if people use something like TameJS with Node (which I don't think most people are doing).