I can remember back in the 5th grade when I visited the Museum of Fine Arts in Boston. In the lobby was a projected video image of a woman sculpting something from clay while entirely nude. My entire 5th grade class was able to show more maturity looking at this naked woman in the art museum than some of these people at MoMA. If 5th graders know enough to be respectful, so should these supposed art buffs.
It takes a good deal of courage to show one's naked body in front of strangers in the name of art. So to comment and poke fun at these performers or comment on their imperfections is just unacceptable to me.