It was arguably only the dreaded "version 4" redesign that caused the failure of Digg. And it wasn't necessarily the look that everyone hated, it was the fact

It was arguably only the dreaded "version 4" redesign that caused the failure of Digg. And it wasn't necessarily the look that everyone hated, it was the fact that every single aspect of functionality was completely changed in a way that made it a different type of website. It took the voting-power out of the users' hands and gave it to the "publishers" of the content.