Look at it this way: It's a male posting for his wife. So therefor anything which is not blue, and not red, a light hue, and in between must be pink. Their color vocabulary is a bit smaller than women's. >->;
Ok, yeah, some of them just aren't paying attention
Although I wonder if red/green colorblindness goes undiagnosed in a lot of people? My husband had no idea he had it, he thought he really just wasn't good at naming colors. It really seems to affect how he views all colors except for pure blues and yellows.