Jesus F. Christ, this is just shameful. Instead of replying with a list of languages, she goes like "you might be setting me up so not gonna answer, fuck you". Of course being Slashdot I assume no one questioned this highly suspicious behavior (I used to read the news there, but it went to hell as soon as they drank that socjus koolaid).
See, game development isn't really a varied universe of languages, it's a bit limited by library and system availability. The easiest, most credible answer would be something like C, C++ and maybe C#/.NET for low-level languages, and something like Lua or Python for high-level ones (note for non-programmers, "low-level" means something closer to final machine code and is harder to learn than high-level, that is more abstracted for ease of use and easier to learn but slower in performance). Then go on about common libraries such as DirectX, OpenGL or SDL.
The thing is that those languages are extremely common and easy to get to. The world of gamedev doesn't go very exotic. A liar can just google a list of languages and get those easy answers in seconds with no risk, or a GitHub user can access this list https://github.com/showcases/programming-languages and just pick some from there.
Let me put stress on this: Wu could have used that answer to reinforce the lie and score some credibility for his story of being a real gamedev, and instead refused to do so just to be a dick. I can't even begin to describe how mind-boggling this is.
What's even more asinine is that she could have answered with one of the languages used by the Unreal Engine and that would have been simple enough.