The Flicker account accidentally deleted by an employee of the site has been fully restored:
Flickr accidentally deleted a member’s account–comments, favorites, and thousands of photos–but now has given the photographer a 25-year Pro-level subscription and all his photos back.
And more importantly for others who fear the same might happen to them, Flickr is working to update its system to prevent such a mistake from happening again and to make such draconian moves easier to reverse.