My read of the comment is: "You are correct, but bear in mind that the world seems infested with people who are far less realistic and honest than you."
The rules also say "Please don't complain that a submission is inappropriate. If a story is spam or off-topic, flag it. Don't feed egregious comments by replying; flag them instead. If you flag, please don't also comment that you did."
I'm not really sure it's the best idea to accuse someone of breaking the rules if in doing so you're also breaking one yourself.