Talk:Thresh/SkinsTrivia/@comment-3419132-20130109213041/@comment-204.13.33.211-20130110003211

He's saying it as though it were an answer to a question.

And what question fits the context better than 'are you mad' or 'u mad'.

In short, they're saying he's answering the meme, not using it himself. Otherwise, it's not much of a joke.