Previous threads we've done: https://news.ycombinator.com/submitted?id=proberts.
Edit: Good evening. I'm signing off now. I tried to get through most of the questions but I know that I haven't answered them all and for that, I am very sorry. Please feel free to email me directly (email in profile) if you have any questions. Thank you for participating in this AMA. The questions and comments were great and as always, I learned a lot myself.