Facebook Didn't Kill Digg, Reddit Did
Digg did not kill Digg. Nor did Reddit, nor Facebook. People using Digg killed it. The same people are now killing Reddit, making it little more than a place to regurgitate memes, nerd pop culture, and rage comics. Reddit and Digg both used to be places to go for interesting discussion based off decent links. Over time, good and insightful discussion gave way to quick-to-consume, funny one-liners. You can see it happening in popular subreddits. Recently the moderators of /r/science started taking a heavy hand and deleting irrelevant comments.This isn't a problem with the sites, it's a problem with the users of these sites. This is democracy in action. It's cable news. People voting don't want to see challenging, thought-provoking content. They want to see things that confirm their biases, or things they can repost to facebook for quick laughs from their friends.