There really needs to be a rule about labeling stuff as being not safe for work (NSFW). It's kind of ridiculous how people just post whatever they think is all right. I remember someone once had a bare breast in their signature on this very forum. Like, what the hell?
Regardless of whether or not this is part of an ad campaign, it's still risque. There could be people viewing this forum in their workplace, or at a public place, or in front of their families. I wouldn't really want to see someone in one of those situations get into trouble due to accidentally stumbling into the wrong forum thread.