Probably because they only decided that "integrity in game journalism" was a worthy cause when they decided that a woman paid for a review with sex.
and over the firing of Jeff Gerstmann over his Kane and Lynch review: http://en.wikipedia.org/wiki/Jeff_Gerstmann
The reason this incident blew up is that, when people complained about it, journalists who were friends of the accused decided to publish a series of attack pieces painting gamers as nothing but woman hating adult children in response, thus igniting the current fire.