Because there is nothing more frustrating than being faced with two gazillions "Photobucket Bandwith Exceeded" icons when you were expecting to find tons of Olsen pictures...
You must open them in a new window, else for some reason the only thing that shows up is the Photobucket icon. The Internet really works in mysterious ways.
Edit: Okay well apparently you also must have something like Maxthon or Firefox. It doesn't seem to work with IE.