When I was in grad school, none of the faculty taught any summer school; summer courses were the exclusive domain of the graduate students. And since there were a lot of us, competition could get pretty stiff--it wasn't at all unusual for classes to be cancelled due to low enrollment. As a result of this, there was a real incentive to advertise for your summer courses, and for those advertisements to make the courses seem interesting, relevant, and worthwhile to people with little background, experience, or prior interest in philosophical topics. People would put posters up around campus with funny slogans and pictures and stuff, trying to attract students.
But (while I was there, at least) nobody ever thought to advertise his course by putting himself in a photo surrounded by a bunch of barely-dressed women in schoolgirl outfits. And if somebody did do that, my sense is that the person would have been made to take the posters down immediately, had an unpleasant discussion with the department chair, and been thought of by the department at large as having behaved foolishly (to say the least).
It is also my sense that this person would have to have been a fucking moron. It's pretty obvious, I think, that that kind of thing isn't appropriate for an advertisement for a university-level philosophy class. And it's pretty obvious that for every person who would be attracted to the course on the basis of something like that, there's at least one who would be turned off in a big way. And it's pretty obvious that the people who would be turned off by it would have a pretty solid point. And so I think it's pretty obvious that it would be a piss-poor advertisement qua advertisement, apart from the disrespect for women in general such a thing might display.
Just an observation, for no particular reason.