I don't know, but it's EXACTLY the same as the last lot of comment rot, so I'm pretty sure whatever it is, it's going to be a pain either way. Last time those comments weren't able to be saved, so I'm doubting they will be this time either...
You won't be able to see the post in question because all of Akgido's old post are flocked due to being part of Clockwork which is now dead. But I've never had an untagged post, and I've never used the default icon for those posts, so I know that the comment rot's hit it ;;