There’s a malady that’s common in many web design portfolios. They are filled with images of the finished design artifacts, but they don’t elaborate on whether or not they actually solved their client’s problem.
In many cases, they don’t even address the reasons why each client was prompted to seek out professional web design in the first place.
Because this practice is so prevalent, designers and prospective clients alike are unaware this is a concern. But I believe it is a symptom of greater issues in the design sales process.