not sure if i'm really saying anything here but i've not looked at digg since the DC GTD experiment started - i've not even thought about looking at it. it doesn't feel like i'm missing out on anything either.
Only thing you are missing is how incredibly slow pages load and how many times they don't load at all unless you refresh multiple times.
Not much of a loss, if you ask me.
If you are trying to get things done, playing with digg and trying to get it to work wastes valuable time you could be spending on better things...like more fantastic Cody wallpapers.