Service: Yahoo’s image and video hosting community.
How To Delete An Account: Since Flickr is owned by Yahoo, they have similar methods in deleting an account. Log into Flickr and access the User Deletion Page. Be warned that the deletion is permanent, so if you haven’t backed up any photos or videos they will be lost forever.
Flickr official page on closing an account. (Note: You have to be logged in to access it.)
Related: Here’s how you close a Yahoo account.
Related Article: How To Close Online Accounts