So it's a DHT, so it's decentralized, pretty nice, but I still don't understand the purpose of this. Is this trying to improve security ? If so, how ?

What I'm more interested in, is a protocol that can let people share data on a DHT, which is resistant to denial of service and other security issues. I guess freenet is that already (somehow), but it's really not usable.

There are so many things in bitcoin I'd love to see in other standards, especially for messaging and forums. It would make things so much harder for the NSA and advertisers.