I'm not sure. At first I thought this guy was something. But then even Assange seems to underestimate the power of price. His leaked infos are now decreasing in "price". Why? Because it's just way too many. Seriously, who wants to invest time digging on 250,000 cables? When he leaked a few classified info, people were taken by surprise. And people wanted more. The price increased.
Then, he flooded the market. Of course I don't have numbers. But I think the position is now an excess supply. Which means the price has gone down.
Too much information is close to worthless information. In such a situation one might not care anymore which one is classified and which mere gossip.