I had to remove it a few weeks ago.
Unfortunately, several folks figured out how to bypass the default configuration, that prevented indefinite looping of a slideshow. Add to that, I had quite a few incidents where people were slideshowing the entire top-level C-Brat owners album, looping through every picture, in every album.
Both of these behaviors cause huge loads on the server, and rapidly eat up our allotted bandwidth. Back when our albums were numbered in the 10's, and our total pictures in the 100's, this was no problem.
An unfortunate side-effect of growth here...sorry.