There are some designers / coders out there you just sit there and wonder if they were born with a genius gene? Well most likely not, they are more than likely hard workers and are passionate about what they do. The fact that they are allowed to show the company work on their own personal portfolio site shows us what great designers they are. A blog post I read said it showed how strong the relationship is between the designer and the studio.
It also helps that it has a pay off on both sides. The studio gets recognition which in turn could lead to more clients while the designer get to bask in their achievement.
Just some designers I can only dream about being at this stage of my life: