It appears that Digg has changed their stance towards their economy.
The Digg economy is the reward system for the users who contribute to the website by submitting content. This ultimate reward is the glory by way of user rankings, calculated as a function of total stories submitted by a user that made it to the front-page.
Keeping this economy in mind, you could say that the recent algorithm upgrade at Digg is actually a shift from a capitalist free market state, to a socialist state of equality.
Prior to this change, the Digg economy was a capitalistic one. One that emphasized fairness and allowed each individual user to create his own fate. Under this system, each user was rewarded appropriately, based on their level of contribution to the system. This economy has now become a socialistic one (not to be confused with communistic economies), which emphasizes equality over fairness.