I'd also put some more information about you the the product in your HN profile (you currently only have the url). This adds credibility to your comments, and

I'd also put some more information about you the the product in your HN profile (you currently only have the url). This adds credibility to your comments, and also provides a non-spammy place to promote the product (since people will only view your profile if they're interested in learning more about you or Mighty CV). (Feel free to see, and provide feedback on my HN profile where I do the same.)