There are also people not behind firewalls and people that are using the classic Hamachi version 0.9.9.9-20 which seems to work rather well compared to Hamachi²... So not quite useless. :)
Haguichi 1.0.14 reached solid ground dragging along these updates:
Improved ownership detection for lists with multiple networks when using Hamachi 0.9.9.9-20.
Removed the checkbox "Go directly online in the network" which was shown in the "Join Network" and "Create Network" dialogs when using Hamachi 0.9.9.9-20.
From now on Haguichi will always trigger the Hamachi 0.9.9.9-20 client to go online in newly added networks to match the behavior of later clients.