No, it implies that you think that the other person is stupid AND they use some form of Unix. Any way you put it, your response is unfriendly and rude. And Hacker News should not be known for arrogance. In fact, the person reading this article might not know much about tunnelling, but maybe writing the next greatest app. You won't know who you are displaying your arrogance to, so don't do it.
doesn't imply being "LEET".