Nearly 5 years ago, a few months after being rejected from YC and a few weeks from being essentially bankrupt (my daughter had an unexpected surgery while we had only catastrophic health insurance), my brother and I posted a Show HN about Webflow (
https://news.ycombinator.com/item?id=5407499). It was our last-ditch attempt to show a proof-of-concept to the world before going back to our old bosses to ask for our jobs back.
Thankfully, the post took off - we were #1 for most of the day, and over 25,000 people signed up for our beta list in the several days after that post. This helped us reapply to YC with a lot more confidence and traction, and we were able to get into the next batch.
Webflow (https://webflow.com/) has since grown into a profitable business with close to 1,000,000 users all over the world, billions of website requests served, and close to 60 team members in over 14 countries. I'm pretty sure none (or very little) of this would be possible without HN and the community here, and the super positive reception our post had.
Today, we're on a mission to enable more people to create powerful software without having to learn how to code - we probably have decades to make that vision a reality, but we're on a decent start in large part thanks to our launch on HN.
A HUGE thank you to the community here!