I came across a question asking the following:
Recently, I have encountered a problem of limiting Internet Access to specific programs. Could anybody recommend a good way of doing that, without using any particular software?
One of the answers says:
use "nointernet" instead of "no-internet". For whatever reason Ubuntu 14.04 can't handle the dash when you try to use sg or chgrp (it prompts for a password, then fails).
Since there is no connection between question and answer, I flagged this as not an answer. Obviously this was meant as a comment on an earlier answer.
The flag was declined. Why?