Flickr is slowly amalgamating itself into Yahoo and this weekend the IDs started merging. At this point you have a choice, but at some point in the future you won’t. So I combined them and now, annoyingly, you have to login every single time you go to Flickr instead of just using a cookie. Clicking remember details only remembers password. So Flickr have just borken my experience and added an annoyance everytime.