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Who's out there being so crazily stingy? Allocating a subnet that small is making things more complicated for no benefit.

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Someone should double check me, but I think PD less than a /64 also just breaks (and probably is against the spec).

A lot of the complaints I have seen in the last decade is from ISPs doing silly things and cutting their teeth on fresh IPv6 deployments. My ISP seems to have their collective ducks in a row now, and it has been rock solid for years.

I actually had a case recently where a misbehaving IPv4 IoT device consumed my entire DHCP pool. IPv6 devices kept chugging along without any problem.

It probably is. I remember that putting a /72 into OpenWRT's `ip6prefix` field actually breaks the whole network stack (including IPv4, the interface no longer has any address assigned to it).

I wonder if that's an artifact of configuration-generation scripts detonating before they ever get around to writing out any configuration, leaving the network interfaces entirely unconfigured.

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