Pretty funny story considering YouTube is back to unusable on slow connections. They used to buffer the full video, so you could load up a page, let it sit until the video buffers, then watch it eventually, maybe after reading your social news sites. Nowadays the buffering feature has been removed and you'll just come back, hit play, get a second or two of video, then it has nothing again for a long time.
Feels bad for the engineer who spent all that time reducing the size and finding out it made YouTube much more usable across the globe. Amusingly, disabling buffering was probably some penny wise pound foolish way to save bandwidth.