[APPLEZ]

I stopped reading when I read

../ tells the server you want to move up one directory.

../ tells the server to go back a directory. It wouldn't make sense is there were 10 "../" when /etc/passwd is only 1 directory away from the root directory.

Going up a directory and back are the same thing

Some sites have additional folders containing the home directory, ex. if the person did not put the home directory in the root of the machine