Script Summary: (obsolete) Allows multi-level nested comments and comment quoting on Digg.
This script adds a reply link to every comment. The link adds the text "@username (#xxxxxx)" to the textbox, with xxxxxx being the numeric id of the comment. The script will linkify all of these it finds, and hide the number so just the @username is visible. The reply comment will then be nested under the parent comment.
It also adds a quote link which does the same as the reply link, and adds the post text after the username.
The different look of the comments is from this userstyle.
Update: some code cleanup
Update: added quote links
Update: removed a piece of debug code, and hopefully fixed the bug Nougat reported.
Update: Bug is fixed now.
Update: More code cleanup, should be faster now.
Update: Another bug fixed.
Edit: The new digg comment system broke this script completely.