It was an incredible video! I can't believe it's gone either. The mystique behind "Ben Marking" as discussed in that thread is only enhanced by this disappearance.
Edit: It's back? https://www.youtube.com/watch?v=HbB0srzLuuo
Edit: It's back? https://www.youtube.com/watch?v=HbB0srzLuuo
Thank you.
I think what happened is that the author removed the nine revisions and uploaded this latest one on the 17th. It was interesting to see their progression though.
Going to youtube-dl it just in case.