I sense the recommendations for /64 assignments even to residential users looks more political than technical.
It seems that because end-hosts and other systems have already been built with more support for stateless autoconfig, this may act as a roadblock for us.First of all, the RFC-6177 does not give the reasoning behind suggesting /64 as being technically motivated but more from the perspective of growth and scalability - I for one am having a hard time imagining how a "residential site" can grow to such a length that it would need 2^64 address space. ...