I have been a member of Flickr since around 2009 and I believe it's the best photo sharing site around. But if you ever have a problem such as being unable to log on or forgetting your password, username, security questions etc, then forget asking Flickr or Yahoo for help because you will probably be locked out of your account for eternity. They will put every available obstacle in your way to prevent you from recovering your original Flickr page. I will be looking for another photograph sharing site.