Just an idea - can there be a "Last Quote" button as well as the "Quote" option on each Post?
When posters click Quote and add a comment, and then that post is also quoted often the last comment is being commented on, not the whole list of preceding quotes of quotes. It would be handy to just quote the last post but to edit out the multiple quotes of quotes above the last post is not easy.
Some quotes of quotes are over 10 levels deep repeating a lot of stuff often not being commented on. Hope this makes sense.