Heh, sbisker, don't you remember? We launched Tinfoil Security as a Show HN before we'd actually built anything and got great feedback. I'm not posting this as a measure of 'success' as much as a measure of a product that still exists, has raised venture funding, and is still trying to become a huge business. :)

http://news.ycombinator.com/item?id=2291944

https://www.tinfoilsecurity.com