system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How foldering technique is better than straight up sending message?

I recently came across the foldering technique where instead of straight up sending message, they store their messages like drafts and then different person can access and read these messages. From what I have understood, this technique is better because the message is never sent and the suspicion is less. 
I am confused since, after writing a message, someone, inevitably, has to log in to the same server where the message is stored to be able to read it. Though the message might not be sent but authorities can still see which device logged into the server. In straight messaging, the authorities can see to which device the message was sent to and from where. So how is foldering less suspicious technique?
gpt
When one sends a normal email it is transmitted across multiple servers to reach it's end point. It's like the message is handed from person to person until it reaches it's destination. Any of those servers could maintain a copy of it. If the message isn't encrypted or perhaps only weakly encrypted then the owner of that server could read it. 

The foldering technique means that the message never leaves the server it's initially stored on making it more difficult for someone to read it other than those with access to that single server.