Just kidding. I do think it's a very fair concern for people to have. Google has that reputation. But honestly, many things on HN are from startups that may go away. And it isn't just Google. I was a huge fan of Apple's Aperture, for example, and they let that die on the vine.
For us, we think there is a real need for this kind of product. And we hope the one we built works well for our users. The team is really invested in the product. We plan to do all we can to make it successful.