Wow...thanks for all the comments. I've been a causal reader of Hacker News, but this was my first post. I'm really impressed all the comments. Lots of great questions/comments.

There was one thing I neglected to mention in the blog post, that I should mention now. We ran a contest (prior to the survey) that required contestants to submit their body measurements. We wanted shoppers to see the power of submitting their measurements. We threw quite a bit of money and traffic and the contest and we saw almost no engagment. My thinking was, if we can't get shoppers to submit their measurements for a chance to win a free high end fashion design, we might have a problem (let's do a survey!)

As @lmm suggested the demographic for high fashion is mostly women. Also, we struggled to find high end men's fashion designers interested in our offering.

@ericabiz - We played around with the language on our site, however, admittedly, I'm not a marketer, so there was definitely room for improvement here. Which is why I've signed up for CoFoundersLab (http://www.cofounderslab.com) so I can find a compatible partner before jumping into my next start up.