User blog comment:DaNASCAT/Introducing New Moderator Opportunities For Community Administration/@comment-452-20160114144350/@comment-452-20160119193523

Yes, I am aware of that, but blog comments can be moved in the same way, and DaNASCAT said that this is something different.
 * edit: Blog comments are moved when renaming the blog post, but cannot be moved directly from Special:MovePage - see below.

BTW, you can just get the full page name by copying the "X time ago" link.

Apparently this was never about "moving article comments", but was about moving comments along with a page move.

I have performed multiple tests and verified:
 * When you rename an article, the comments are moved.
 * When you rename a blog post, the comments are moved.
 * When you rename an article as a blog post, the comments are moved.
 * When you rename a blog post as an article, the comments are moved.
 * When you go to Special:MovePage/(article comment URL), you can move the article comment to a different article.
 * When you go to Special:MovePage/(article comment URL), you can move the article comment to a blog comment.
 * When you go to Special:MovePage/(blog comment URL), you get an error message
 * When you move a blog post into the article namespace, and then go to Special:MovePage/(article comment URL), you CAN move the renamed blog comment anywhere.

So... the handling is slightly different, but it can be done. Since blog comments can be moved into the article namespace, and then moved individually, I can see no reason why blog comments shouldn't be able renamed while in the blog comment namespace.