OK, I also manually move stuff, sometimes, usually the Trash! I guess it's not always possible to set a time for that kind of event ie; 1 month, 1 year, etc. I'm still confused (by my never having used Thunderbird), as to how you know if
current mail has been filtered to a mailbox/folder that is not 'open' to view. It probably doesn't really work that way, there must be some indication that there is an unread message in the folders in view, even if it's in a subfolder that is not in view.
