Fair point. The draft originally included some "if this then that" questioning for polyphasic sleep, but it was becoming complicated. We'll have to try a little harder in the next version.
Results were gathered in August 2014 by Cameron Moll. The sample size (471) is rather small and therefore should not be construed as indicative nor representative of the entire HN audience.
Collecting emails for notification might have been wise, but I wanted to be completely clear no highly personal details would be collected or published. (Salary might be considered highly personal, but without contact information to attach that salary to, it remains generic.)
"It's not Kickstarter's fault that he failed to budget the vast majority of his costs..." Definitely not. But this is a primary reason for authoring the article—a heads up to others who may launch a KS campaign and not fully understand where all the money might go.
Very happy with the outcome, indeed. I thought it was important, however, for others to understand what goes into (and comes out of) creating a Kickstarter project, and how they might avoid misjudging costs—as others have pointed out here.