YT, FB, Scamazon, etc are going to be the LAST outfits to deprecate IPv4, for simple commercial reasons
But they may well be the first to encourage users to push across to IPv6 access for enhanced features, given the expenses of operating IPv4/IPv6 tunnels at the edges of their networks
IPv6 is already clearly lower latency for most of these guys so "faster access" might be the selling point that pushes people to bug ISPs for v6
Biting the hand that feeds IT
