A reasonable approach imo would be to let the RIRs assign it, but only to networks that can demonstrate they are running v6. As regards to the zeroth address o

A reasonable approach imo would be to let the RIRs assign it, but only to networks that can demonstrate they are running v6. As regards to the zeroth address on multipoint L2 networks would it really help that much? I’m not sure many people are really gonna see massive improvement squeezing one more host onto subnets. Maybe at the smaller end of things, /30, /29, /28 etc. Orgs are finding they can stretch v4 quite a lot, with load-balancers, proxies, NATs etc. The bigger headache in my experience is acquiring enough routable ranges to assign 1 for each site. A couple of extra hosts at each seems less critical.