Network security would be one aspect of hacking (actually the aspect I am employed in). Breaking out of the confines of an API would be another, or just doing something because you want to see if it can be done, not because you're following a tutorial on GitHub. Actually, someone on reddit put it best related to their plans for a Darknet project: "don't expect help from Hacker News, if it doesn't have a business plan they won't be interested." Hackers don't care about business plans. The site used to be called "Startup News", in the days when the original redditors were pining for the days of the original reddit base. Based on the content still present, Startup News is still quite fitting.

In short, simply re-creating something in a new-wave language is what I'm kind of complaining about. That's not "hacking", that's just good programming.

At least in my view of the term, creating intelligent code isn't "hacking". It's just being a good programmer. Hacking would be doing something that hasn't been done before on a wide scale with the intention of creating a result that varies from what an average user would expect. The jailbreakers hacked sideloaded applications onto their iPhone. The average user followed their directions and achieved expected, predictable results.

Ruby _can_ be used hacking. "How to recreate Path in Ruby" does not a "hack" make.

It's not that they aren't relevant. I think it's the frequency of mention of said languages that is the problem to the above poster.