My instinct is that this post being on the front of HN, along with the tenor of the comments, is evidence of it working. I'd wager that her post is serving as a

My instinct is that this post being on the front of HN, along with the tenor of the comments, is evidence of it working. I'd wager that her post is serving as an incredibly effective piece of content marketing. HN is the perfectly audience for Keen's product, and getting on the front of HN for a full day is a big win both for reaching customers and new recruits. Certainly some people will have your reaction, but another significant percentage will have a positive reaction, as demonstrated in the comments.