So what? I'm 5'6 and mostly ski 188s. My favourite skis ever are those, a pair of 190 DPS, and a pair of 195 Hojis.
It's not because it's cooler and it's not because I'm young and naive - i'm way older than the vast majority of people on this site. It just comes down to the fact that i've tried a huge range of different skis in different sizes and I find I gain much more than I lose with longer skis, depending on the shape and rocker profile.
Just because you prefer a shorter ski and I prefer a longer ski doesn't mean either is wrong, and judging people because of the length of their skis is retarded. The bottom line is that everyone should try as many different shapes, sizes and lengths of skis as possible to find what they like and what suits their skiing, especially now there's such a huge variety in the types of skis made nowadays.