Not sure if this has much lasting interest but Flickr Inspector supplies details of a registered flickr user. It is not an offical flickr site, not that you would know from the logo mind.

Details supplied incluide user id, how long user has been registered and displays the most 'interesting' photos from that user. There is a 'score', not sure how this is calculated but it gives website owners a code snippet to display it on a webpage. User data, a big tag cloud and other snippets are also displayed.

Flickr Inspector was designed by Nils Windisch from Germany. He describes flickr inspector as "a non-commercial website, that displays publicly available data about single flickr users. flickr itself is probably the most amazing photo sharing site. this is by no means an official tool by the makers of flickr (or yahoo), it's just what i, nils k. windisch aka netomer programmed in my free time to enhance user experience."

My flickr inspector details - including some terrible photos taken with a camera phone - can be seen here.