Spent 15 years in the infantry. Yup, face paint can make the difference between getting killed and living to see another day, for you OR the other guy.
Personnaly, I like face paint or net when ground hunting. In a tree, not so much a problem.
I do still watch some of the hunting shows and enjoy them for their enthusiasm and comaraderie. Everybody has to make a living somehow... why not have fun doing it? I see nothing wrong with many of these shows. Some are over the top though and have lost their respect for nature... and their appeal with me. Just my lil' two cents worth.