One of the very basic ideas of Post-Modernism is rejection of arbitrary power structures. Different people are sensitive to different kinds of power structures.
Post-Modernism was a reaction against Modernism. It came quite early to music and literature, and a little later to architecture. And I think it's still coming to computer science.
Post-modernism is modernism with the optimism taken out.
Post-modernism is dead because it didn't address human needs.
Post-modernism has cut off the present from all futures. The daily media add to this by cutting off the past. Which means that critical opinion is often orphaned in the present.
I started thinking that if post modernism is about people opening up all their skeletons, I'm going the other way. I don't want anyone knowing anything about me anymore.