I'm the founder of a stealth startup that focused on email first as a key part of our product. Swombat was one of my early adopters (https://news.ycombinator.c

I'm the founder of a stealth startup that focused on email first as a key part of our product. Swombat was one of my early adopters (https://news.ycombinator.com/item?id=5280289 https://news.ycombinator.com/item?id=5280289). Hopefully I'll be launching as a Show HN sometime next month. Email first allowed me to quickly validate the business and generate revenue without having to worry about anything other than the core value proposition.