This was a desperately desired change by at least one sifter who was sick of seeing a whole comment with a whole video within the *backup=[] braces who would always go in and edit to remove the embed manually.

In short, it cleans up the comment listing and removes content that's not really necessary because either it's still in the list of backups on the video or it has been used to replace the video.

*Raises hand*

Thank you.