I think the main issue is when they just completely revamped digg in a way that destroyed the community driven nature of the website - they tried to "personaliz

I think the main issue is when they just completely revamped digg in a way that destroyed the community driven nature of the website - they tried to "personalize the front page to each user" or something like that. But people didn't want a personalized news feed, they just wanted the community, which the updates really screwed up. I think I logged into the "new digg" 3 or 4 times before completely abandoning it for reddit, and never looking back - this was as a daily user of several years at the time. I really dislike the "new reddit" as well - if they hadn't kept the option to use their old site, I would have stopped using reddit too.