If you're a programmer (which I think you're not), after watching this video you'll know that the design is not the important thing about EB.
I understand the power of EB comes from the code that allows it to aggregate, sift and categorize data.
My point is that what makes that data useful is the interface with which people interact with the data.
Look at the interface differences between day one and day 365 - http://blog.everyblock.com/2009/jan/23/oneyear/. UI/UX design is not easy, and it's a challenge for most developers.
If you're a programmer (which I think you're not), after watching this video you'll know that the design is not the important thing about EB.