Spent 3 mins looking at that site: GNUnet mentions name resolution based on IP addresses.
Unless there’s a way to obfuscate those via Tor or some other mechanism, the system only provides anti-censorship and anonymity in terms of domain registration/blocking.
I am not particularly interested in that since the current (legacy DNS approach) is good enough for my current use, and for my future use the GNUNet approach wouldn’t be sufficient, so I’d rather skip it in favor of MaidSafe.