We all have to make the transition to IP6, sooner or later.
If we are able to type in clickable URLs with IP6 addresses in all posts and comments, the Q&A process about this important and surprisingly slow-moving development will be a bit easier for everyone. With the clout that the SE network has in the IT world, it might even make a difference.
Looking forward to clickable IP6 URLs on the SE network!
Edited to add: A quick test here of stackoverflow.com indicates that the SE network does not support IPv6, so maybe it is not realistic to push this request before there is support for IPv6 from the SE sites. From a psychological (for want of a better word) perspective, not technical, of course.