What is the difference between "GSoC" and "Students"? "Users" and "Taggers" and "CD Rippers"? (For the two latter: programs or people?) "Contributors" and "Editors" and "Voters" (and anyone else in the graphic giving back)? "Supporters" and "Corporations"?
I also don't understand if the graphic is supposed to convey some sort of sense/order in how some of them come from or go to the same point (e.g., Users, Votes, Taggers derive from the target point of GSoC, Team, Students, while Users then go into the same pile as Voters and Corporations).
I like the idea of such a graphic, but personally I get somewhat confused when trying to decipher this "graph".