It's also interesting to note that most ex-digg engineers primarily work in a language other than PHP currently.
Anyway, I liked Digg. Then then newer users got involved and stories they didn't like got buried. The first time I used it the articles were technical and really interesting. Then it got political, stupid memes, etc. In its default state I think it was better than Reddit. Reddit is great but you have to work on it. Clean your browser cache and look at reddit like you're going their for the first time. What do you see? Crap from r/AWW, r/atheism, and r/politics take up all or most of the frontpage.
Yep: http://news.ycombinator.com/item?id=2352521
It wasn't the execution that destroyed Digg, it was the ideas behind v4. It's a remarkable case study in what not to do with a popular community website, and pointing to technical mistakes is just deflection. Maybe the developers were terrible, but that still has very little to do with why Digg failed.
"v4 would have worked out if only my employees were smarter" is a pretty classless and delusional assessment of what went wrong.