When we are using a VPN that uses a tunnel mode it sets the server location of the user to not it's real location but some other location that the user wants or the default location in the VPN.
When an packet is intercepted it does not reveal anything about the right destination system.
Yes very much so! You could learn previous mistakes/bugs/etc and find solutions to fixing them and avoiding getting them. As well as much more. History is always a fun subject for anything, really in my opinion.
