I agree with what he says and I remember being one of that target group that he hates. I took pictures of everything and guess what I rarely looked at them again. I might as well have deleted them all. Do you really need to take pictures of everything?
I don't feel offended by this one bit but rather I think this is a good thing to ponder on the next photo trip.
Now, especially after getting the FM2, I've started giving the same thing a lot more thought. Also I've started to think more on the spot, whether it is really worth taking the shot or not. Anyone here who shoots on film, knows what I mean. You don't shoot rolls of scenery and then later decide if it was worth shooting or not, but instead you try making that decision yourself. My aim is to reach the same point with my digital camera: instead of going on a one-day photo trip, taking 300 photos and leaving 10-20 of them, just taking 20 shots and leaving the 5 good ones.
And one good quote to finish my post off: Don't worry about what people think of you, they are too busy worrying what you think of them.