Which is ridiculous -- it makes names unreliable as public identifiers. Sure, you can refer to Alice's site as "site.alice", but nobody else can resolve that name unless they share your configuration. Worse, it means that anyone who has a different key mapped as "alice" might see "site.alice" resolve to something completely different than what you see.
And let's be honest-- if someone on HN were to post, "OMG the security updates repo got DDOS'd in Debian" it's not like the entire comment section is going to be filled with confused responses like, "Wait, do you mean the security updates for the gitlab repo that I added for my gitlab instance, or Debian's security repo for Debian the Universal Operating System?"
Looks like Christian did a quick 4 minute synopsis here:
https://www.youtube.com/watch?v=bB9SC4kD27Y
If you like the idea of both the decentralized resolution and using the DHT as a PIR, you might look into it.
Also-- if you find it's the case that it's not currently usable (which I'm guessing is the case), it might be worthwhile to mention on your README that you looked at this as an option and then briefly state the reason(s) why you can't use it in practice. If enough prospective users of gnunet do this it may motivate the maintainers to do something about the current state of the documentation and usability...