Well, hey, if you're 150 at 20% bodyfat, you got some fat to lose. Plus you have to remember that just because Joe has his abs showing at 10% bodyfat, doesn't mean that Bob will have his showing at 10% he might need 7%.
Not everyone here is in it for the health aspect. Many of us, including myself, are just in it for the vanity. Andhey, maybe some people liek the chisled skinny look, not everyone wants to be a mountain either.