Oh hey, volunteer dev at Couchers.org here. How cool to see this pop up on Hacker News!
For the n00bs: I think the best way to explain the concept of couch surfing is to imagine visiting a friend in another city — they show you around, you have a great time, and you crash on their couch, or guest room or whatever. With Couchers, it’s just like that — except you’re meeting that friend for the first time (via Couchers).
Anyway come join us we're fun lol.