Should physicians have links on their Facebook to bikini clad women?

A doctor I know, a Board Certified urologist, is a serious, brilliant doctor and surgeon I highly respect who is about in his late forties or slightly older and married. I was fiddling around on Facebook and noticed he has a link to a page filled with half naked , young women in bikinis. What do you think of this? What would be his reasons for doing it knowing that people in our town would most likely see them ? I’m not condemning him at all; I’m just wondering why he would do that and what you think of it.