If you are not aware who he is, i suggest to Google but here is small sneak peak.
Hes the guy who created WikiLeaks. There is also some movies about him ie:
Currently about WikiLeaks his main place to share news is Twitter and now hes looking for a decentralized version!
So now we can get word out about Steemit, STEEM and decentralization and possibly get such big person here.
Reply to his tweet with links/infos.