If there is a certain owl/thread of messages that you don't want to lose, you would be able to pin it to the top of your owlery.
Or perhaps be able to make categories? Like you could make 'important owls' and move it there if you want to keep it? Like a real mail?
With the new folders you can just create a folder for important owls, or owls that you still have to answer, so you don't lose them
Customer support service by UserEcho