How to delete a Couchsurfing account?
The description of the service:
Couchsurfing International Inc. operates Couchsurfing.com, a hospitality service and social networking website. The website provides a platform for members to "surf" on couches by staying as a guest at a host's home, host travelers, meet other members, or join an event.
Cannot be deleted fully, reactivation is always available. Fill out the request form.