I've been using IPv6 in anger for about a decade now and I have a few observations too. This blog implies that IPv6 might simply happen and that is bad. If it

I've been using IPv6 in anger for about a decade now and I have a few observations too. This blog implies that IPv6 might simply happen and that is bad. If it does "happen" for a particular site then it will "happen" in the same way as IPv4 does already. Routers generally fail safe and so do PCs. In general a router will by default block inbound and allow outbound, regardless of IP flavour. Yes it is a bit of a pain to maintain two lots of firewall rules but when you think about it you already have to worry about protocols too so IPv6 simply adds one more dimension to the already considerable combinations. A firewall rule generally worries about inbound/outbound IP/port/protocol. All IPv6 adds is IP version. You'll also be surprised how quickly you can become accustomed to the stupidly long addresses. You may have forgotten how long it took you to get to grips with dotted quads when you first encountered IP(v4). IPv6 does just work - it does have issues with multi ISP and that is a major issue that was never considered at the initial design stage. There are workarounds but they are shit unless you do full on BGP which is hardly a home user solution. It is what it is.