Saatchi & Saatchi just turned the “out of office” reply into ad space

Is this a joke? Have these people completely lost their minds?<p>Emailing somebody and having them include an advertisement in the response sounds like one of the most unprofessional things ever.

Sounds like the advertising/promo tags at the bottom of Web-based emails (which started with Hotmail, I recall) as well as "Sent from my iPhone"...