For the same reason it tends to get used in Alternate Rock? A way to say, "we both know we're hipper than the average dude, and can use this word to shock Joe Q Public while just adding an inside emphasis for us cool dudes who won't over react to a four character word". Or that could be me overinterpreting :-)

Agreed. In the categories of words I'd rather not see in a such an email, but for completely different reasons, I nominate "reinvent". It needs to be taken out the back, shot and served as the main course to a VC dinner.