The great philospher Wittgenstein said:
"Humor is not a mood but a way of looking at the world. So if it is correct to say that humor was stamped out in Nazi Germany, that does not mean that people were not in good spirits, or anything of that sort, but something much deeper and more important"
According this analysis some conflict situations are just so terrible they kill jokes and the possibility of jokes as effectively as they kill innocent victims. So the existence of a large number of playfully insulting ethnic jokes could be an indicator of a fairly healthy and sustainable cultural relationship between two groups. It's the complete absence of such jokes we should look out for. In fact, in Mein Kampf Hitler warned the bourgeoisie of the dnager of making jokes about the Jews, on the grounds that laughing at such jokes would undermine their implacable opposition to the Jewish threat. In other words, its very difficult to hate something that you are accustomed to find funny.
Source - The Naked Jape - Uncovering The Hidden World Of Jokes - Jimmy Carr + Lucy Greeves
I would argue it's also impossible to love somebody you can't joke about or with.
So where is the WTS sense of humor about itself, or, in fact, about anything?