Where this article purports that digg's fall was reddit's gain is subjective, article quality has fallen drastically even within subreddits. I no longer read /r/programming or /r/linux as it's full of ignorance that seems to be magnified (more upvotes) by ignorant users. This seems like a great platform to study the change in behavior of an increasing social population as we also see this in the real world with elections and such.