Sheesh, it's not like they suggested calling it the WOB (Wide Open ... - if you don't know what I mean, go read Breakfast of Champions, all will be made clear. And so on).
As to creating a hostile work environment, did you dance around your cube chanting, "Spread-eagle, spread-eagle, spread-eagle--Unh" with a manly thrust accompanying the final grunt? Did you post a print out, highlighted in a coworkers' cube? That's the sort of crap that creates a hostile environment. And it does happen. All too often.
The explanation for hypothetical HR perosn is simple. "I read a technical website related to my work. Because it is composed of user submitted content, sophomoric and inappropriate comments show up from time to time. The vast majority of posts to this site are free of this sort of content. I would be hampered in my work if I were unable to visit this website." No sweat, I don't see how the HR person's genital configuration has anything to do with the explanation.