It's probably because you are using the mobile version of the flickr website. The link above is not a photo link where the photo appears in this thread, it's just a copy of the website address that is now a link as it's recognised by the forum software. The B&B code link allows the photo to appear in the thread, much easier than having to click through every time.
At the very bottom of your photo it says flickr.com. Clicking on this takes you to the flickr website (non mobile). From here follow the instructions by odd Jim.