Why are the symlinks to the executables in /proc broken?

Issue

• Linux Daemons with Broken Links to Executables, why?

• The symbolic links referring to the executables of each process in /proc are seen to be broken:

[user@test ~]$ ll /proc/*/exe 2>/dev/null
lrwxrwxrwx. 1 root  root  0 Sep 12 07:08 /proc/10/exe
lrwxrwxrwx. 1 root  root  0 Sep 12 13:08 /proc/1150/exe
lrwxrwxrwx. 1 root  root  0 Sep 12 13:08 /proc/1151/exe
lrwxrwxrwx. 1 sibu  sibu  0 Sep 12 13:33 /proc/2364/exe -> /bin/bash
lrwxrwxrwx. 1 root  root  0 Sep 12 13:33 /proc/2389/exe
lrwxrwxrwx. 1 root  root  0 Sep 12 07:08 /proc/8/exe
lrwxrwxrwx. 1 root  root  0 Sep 12 07:08 /proc/9/exe
lrwxrwxrwx. 1 sibu  sibu  0 Sep 12 16:36 /proc/self/exe -> /bin/ls
[user@test ~]$ 

• This is highlighted as an issue by "Nessus Vulnerability Scanner"