Just last weekend the local news people were being so defensive about all the typo's they hear about. It went on a lot longer than I thought was appropriate. The final thought from one of them was, "Well, it's our job to make sure it's correct." And that's true.
I read this blog when it was first referenced on here and have forgotten most of it.
In short, we tend to do our best with things we care about deeply. We don't really know what others care about, even though it may be their chosen profession.
With any form of art, perfection is impossible. What some consider art is