I think where the area of confusion lies Macethump, is that you may not understand the vibe of the off-topic section. Off-topic is quite different from the rest of the forum, or even most forums. Most of the posters here are very open-minded on matters of sex and sexuality. It is for precisely this reason that I like it so much, as I tend to get rather tired of the sexually repressive and prudish attitude I find in American society. In fact, I find it rather impressive that some of the minors here who have never even had sex share such an attitude. I find such healthy sexual attitudes refreshing.
I think the reason you're so surprised at how indifferent and blase we all seem to be is because of this. We're all 'cool' with it, because we're not easily offended by such things, not to mention that most of us knew it was a joke. Let me point out that you didn't have to know the personalities involved at all to be able to recognize it as false. The fact that the title of the thread made a punny ("sexposed"), and also that Bulle praised Pavlov's dick size while complaining about it, should have raised flags in your mind; women invariably call a man small when complaining about them. You could also consider Mage's comment on Pav sharing the pic, something most guys don't do.
I believe that the people here can appreciate the context of the joke, and are able to separate it from reality. Lest you think that I'm not grounded in reality, let me tell you that I just spent five years working with teen rapists. I am very well aware of the seriousness of rape, sexual harrassment, and child abuse, but that doesn't prevent me from laughing about such things
in the proper context. One of my favorite jokes is about necrophilia, but that doesn't mean I at all support such a thing, nor that I can't separate it from reality.
If your concern is about a "boy who cried wolf" result, I do not believe that will be the case. Raz already indicated that he wouldn't have been sympathetic if it had been real. I personally would have only started to become concerned, assuming I believed it, if Bulle had complained as she had and staff here did nothing.
With that said, here's a training video on how to detect sexual harassment.
http://www.blinkx.com/video/tom-brady-snl-sexual-harassment-psa/h7nIkQjgII_oYNH7gQfUpAEDIT: fixed link, added sentence.