As Drupal events grow around the world, more and more people find meetups and conferences closer to themselves. However, traveling to bigger events like Drupalcons can still be a financial problem for many. One of the solutions for this is couch surfing, where you could take a couch from someone who has it available in the host city for an event. Of course sleeping at an unknown person's place can be problematic. However, if we consider you already go for a Drupal event, and drupal.org has a profile for people with attached data on their activity, it can form as a reputation system. At Drupalcon Copenhagen, we discussed that maybe it would even be possible to build this tool as a group on groups.drupal.org (but definition of what is exactly needed is best to be done first).
I don't have the opportunity to help and build this tool but thought throwing the idea out would be useful for others to brainstorm and possibly help the community by making it work. We already had a nifty slogan for it when module maintainers couch surf: "I'm using your APIs, may I use your couch as well?"