No no. He's being coooooooool. Haven't you heard the latest? He's making a social statement about those that can't type. It's all the rage. All the kids are doing it.
"teh" or "t3h" for "the". "Teh" is the seminal and ubiquitous example of the leet letter-transposition construction of words. Also, "teh" can have a different grammatical function than "the", in that it can convert a following word into a noun (e.g. "I am teh r0xx0r.")