It was the end of Digg, when Digg tried to comply with Sony's request to take down some leaked Sony key. All Digg users were commenting/posting the keys everywhere. Many migrated to Reddit thereafter. About 17 years ago, I think.
The end of digg was letting advertisers have their way with the front page and consolidating around a couple power users, who were also able to be paid to push whatever advertisers wanted to be pushed. That whole digg v4 fiasco.
no, the digg code was for DVD during the HD-DVD era.