Well, it's a given that a portion of any reality is scripted to an extent and the people in them are likely encouraged to act more like whatever light the producers of the show want them to be portrayed in - but not every bit of it is fake. Obviously the bullies are told to be more douchey than they probably really are, but much of the time the bullying victims seem legit, even crying while they describe some of the bullying.
haha that wasn't really an important part of what I was saying, anyway. Just a note. Before the show ever existed he would talk in interviews about how he got into fighting and how he would look for bullies to shutup and liked protecting bullying victims, even though he would get beat up some of the time.
And that picture with Patrick (Spongebob Patrick...) and Mayhem is sadly hilarious.