[ritche]

Users of the popular photo-sharing site Flickr are upset with the announcement that customers must use Yahoo IDs to log-in from 15 March.

Flickr also stressed to founding members, known as "old skool" users, would have to switch to "simplify the sign in process".

I personally feel that in time, it just gets more expensive to maintain independent means of authentication and we could 'spend' those efforts on other things which make Flickr more useful, more fun, more versatile."