> the cryptographic (in)security of Yggdrasil addresses.
Fair enough, I didn't catch that one.
The addresses generated has changed already from 0.3 to 0.4 (which is the series we see today), I expect that something will change again in future to make brute forcing harder.
Notice that in all cases the same IPv6 range was used, reusing the same space as upgrades change the individuals' IP address.
I agree with you — in the context of IPv6 addressing in general, who cares about 7 bits? Heck, who cares about 64 bits?