I like to think about frameworks in terms of those long tail distributions. They do well for many common cases but as you go further and further out in the dist

I like to think about frameworks in terms of those long tail distributions. They do well for many common cases but as you go further and further out in the distribution it becomes more and more convoluted to get your solution written in terms of the framework. In most cases the users end up asking for very unique features that never occurred to the framework designers.