<i>it was all web designer input and there was none regarding the actual concept, business model or use of the application</i><p>That's not because the users of this site are web designers. Mostly they're developers. It was because the design of the site was so bad that most visitors got held up there. This also explains the low sign-up rate, which you explain as a property of the audience. I think it is more likely a property of the site.
"Out of 350 or so visitors, we got 4 sign ups"<p>The ycnews crowd may not be your target audience. Perhaps they they are too busy hacking their own stuff to bother researching other startups :)
I'm glad you've brought your site to be picked apart by the News.YC group. Judging by this blog post you're doing exactly what you should be doing: Listening to the suggestions and adapting as needed. Good luck with this!
Wow! This is one of the most insightful and helpful posts ever. (Many of us are in the same boat.)<p>Your site may not be ready, but you guys sure seem like you're on the ball. Thank you and good luck!