After some chatter in #ipv6 on freenode, decided to make a quick post about the IPv6 experience with Plex:
http://ipvsix.me/?p=310
Also these threads could use some love, ideally from PlexPass holders (paid/paying customers):
https://forums.plex.tv/index.php/topic/71546-ipv6-support-for-myplex/page-3
https://forums.plex.tv/index.php/topic/122235-feature-reqest-publish-server-via-ipv6/