I think of a framework as a culture. There's a certain "X way" to do common things in framework X, both out of community convention but also because it aims to mitigate a lot of common problems by providing ready solutions.
A library is something you can go to as needed, but you don't live there, and you may never see your friends there. You're still friends and socialize in the same subculture, but they check books out from a different library branch and that's fine.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.